Современные кондиционеры оснащены системой самодиагностики, проверяющей работоспособность техники в автоматическом режиме. При обнаружении неисправностей прибор подает сигнал миганием светодиода или кодовым сообщением на дисплее.
В статье мы рассмотрим информацию о кодах ошибок кондиционеров, почему они могут возникнуть, основные варианты кодов поломок, как исправить.
Коды ошибок промышленных кондиционеров LG.
01 – датчик температуры воздуха короткозамкнут или обрыв в цепи;
02 – датчик температуры испарителя короткозамкнут или обрыв в цепи;
03 – плохое соединение внутреннего блока с проводным пультом управления;
04 – ошибка дренажного насоса (помпы) или поплавкового датчика уровня конденсата;
05 – ошибка в межблочном соединении внешнего и внутреннего блоков;
06 – датчик температуры наружного блока короткозамкнут или обрыв в цепи;
07 – внутренние блоки мультиситсемы включены на разные режимы работы;
HL – та же ошибка, что и 04, поплавковый датчик разомкнут;
CL – установлен детский замок, для включения нажмите Timer & Min Buttons 3 секунды;
Po – установлен режим jet cool, для выхода нажмите кнопку jet cool
21 – перегрузка компрессора по току;
22 – ток компрессора более 14 А;
23 – напряжение постоянного тока ниже 140 В; (не напряжение питания, а после модуля преобразования)
24 – ошибка по высокому/низкому давлению, датчики давления разомкнуты;
25 – напряжение питания выше/ниже нормального значения;
26 – DC Compressor Position;
27 – ошибка PSC (реактор, катушка индуктивности);
28 – DC Link High Volts;
32 – Высокая температура нагнетательной трубы (INV);
33 – Высокая температура нагнетательной трубы (Cons
40 – короткое замыкание CT;
41 – датчик температуры D-Pipe замкнут/оборван (INV);
44 – датчик температуры наружного воздуха замкнут/оборван;
45 – датчик температуры конденсатора замкнут/оборван;
46 – датчик на всасывающей трубке замкнут/оборван;
47 – D-pipe датчик замкнут/оборван;
48 – D-pipe датчик и датчик температуры воздуха отсутствуют/оборваны;
51 – комбинированная перегрузка по мощности;
52 – ошибка соединения (main micom-sub micom);
53 – ошибка соединения (внутренний-наружный блоки);
54 – для систем с 3-хфазным питанием, неправильная последовательность фаз,поменять фазу;
60 -ошибка EEPROM (внутренняя энергонезависимая память)
61 -высокая температура трубки конденсатора (конденсера)
62 -высокая температура радиатора(скорее всего имеется в виду радиатор охлаждения силового модуля инвертора)
63 -низкая температура конденсатора
65 -датчик температуры радиатора замкнут/оборван
67 -заблокирован наружный BLDC (безколлекторный электродвигатель постоянного тока) вентилятор
105 -нет связи между главной платой управления и платой управления вентилятором
Коды ошибок всех настенных кондиционеров LG, в том числе серии Art Cool
C1 или CH1 – внутренний датчик температуры воздуха короткозамкнут или обрыв в цепи;
C2 или CH2 – датчик температуры испарителя короткозамкнут или обрыв в цепи;
C4 или CH4 – температурный датчик конденсатора короткозамкнут или обрыв в цепи;
C5 или CH5 – соединение между внешним и внутренним блоками;
C6 или CH6 – превышен ток в цепи инверторного модуля;
C7 или CH7 – превышен ток компрессора;
C8 или CH8 – не вращается вентилятор внутреннего блока;
C9 или CH9 – не вращается вентилятор внешнего блока;
C10 или CH-10 – неисправен терморезистор контроля температуры корпуса компрессора сплит системы (обрыв или короткое замыкание)
CA – температура нагнетания выше 130 0С;
CC – ошибка EEPROM (внутренняя энергонезависимая память);
CD – ошибка в инверторном модуле;
Po – система находится в энергосберегающем режиме, ошибки нет;
Lo – система находится в режиме тестирования,ошибки нет;
Система самодиагностики кондиционера
Для удобства пользователей производители оснащают кондиционеры большим набором полезных функций, одной из которых является система самодиагностики. Этот вспомогательный инструмент своевременно выявляет малейшие сбои в работе климатического оборудования и информирует о возможных неисправностях и поломках, что, в свою очередь, спасает владельца от лишних расходов на ремонт техники.
Некоторые неисправности владелец может устранить самостоятельно, другие же требуют вмешательства опытного специалиста из сервисного центра. Определить причину неисправности и необходимость вызова мастера помогут коды ошибок.
Где отображаются коды ошибок (в зависимости от модели кондиционера):
- На дисплее прибора.
- На пульте дистанционного управления.
- Светодиодами на блоке. В нормальном режиме они горят ровным светом. Если в работе техники произошел сбой, светодиоды мигают с небольшими перерывами.
Для определения поломки по коду ошибки владельцу нужно изучить расшифровку символов.
Классификация кодов ошибок кондиционеров
Коды неисправностей кондиционеров классифицируются по общепринятой системе комбинирования символов и состоят из 2-3 и более знаков. Это могут быть только цифры или буквы латинского алфавита, а также комбинация из букв и 1-2 цифр.
По буквенным символам определяется место, где произошел сбой, а по цифре или количеству миганий диода можно определить, какая именно поломка произошла.
Классификация кодов ошибок:
- Простые символьные коды.
- 2-значные детализирующие обозначения.
- Упрощенный 3-значный сигнал.
Владельцу прибора не нужно заучивать все символы и коды ошибок кондиционеров, тем более что в каждой марке оборудования они разные. Достаточно вовремя обратить внимание на проблему и отключить прибор от сети до выяснения причин сбоя в работе.
В инструкции по эксплуатации кондиционеров публикуется информация о кодах, что позволит владельцу определить тип и сложность поломки. Если проблему неисправности нельзя решить самостоятельно, придется вызывать мастера из сервисного центра.
Символьные коды ошибок кондиционеров
Символьные коды представлены в виде нескольких знаков, например «*». Понять ошибку в данном случае можно не по самому символу, а по их количеству. Как правило, символьные коды ошибок отображаются на пульте управления.
Двухзначные коды ошибок кондиционера
В двухзначных кодах ошибок используются латинские буквы и цифры. Первая часть кода, отображаемая буквами, отвечает за конструкционные составляющие сплит-системы.
Расшифровка символов (кратко):
- «А» и «В» – неисправности внутреннего блока;
- «Е», «Н», «F», «J», «L», «P» – проблемы возникли в наружном блоке;
- «U» и «M» – эти коды сигнализируют о проблемах системы.
Второй код ошибки представлен из цифр в последовательности от 0 до 9. Для определения точной причины неполадки рекомендуется изучить инструкцию пользователя, входящую в комплектацию кондиционера.
Трехзначные коды ошибок кондиционера
В 3-значных кодах ошибок используются буквы и цифры, чаще в комбинации одного буквенного символа и двух цифр. В прилагающей инструкции есть подробная расшифровка.
Как устранить неисправности
При правильной расшифровке кодов ошибки кондиционера некоторые неисправности можно устранить самостоятельно, не прибегая к помощи специалистов. Рассмотрим самые распространенные причины неисправностей, с которыми может справиться владелец климатического оборудования.
Неисправности кондиционеров и способы устранения:
- Загрязнение фильтров. Требуется очистка путем промывания под проточной водой.
- Перегрев системы, связанный с загрязнением радиатора. Этот механизм также подлежит очистке от пыли и прочих загрязнений.
- Протекает конденсат из внутреннего блока. Владельцу нужно отсоединить и прочистить сливную трубку, а после просушить и вернуть в первоначальное положение.
- Плохое охлаждение кондиционера, спровоцированное засорением капиллярной трубки. Очистка проводится методом вакуума.
- Загрязнен вентилятор внутреннего блока. Чистка лопастей выполняется с использованием мыльного раствора, мягкой тряпки и щетки.
Более серьезные проблемы, вызывающие сбой в работе климатического оборудования, не рекомендуется устранять самостоятельно, не имея соответствующего опыта и навыков. Ремонт и замену вышедших из строя деталей лучше доверить квалифицированным специалистам из сервисного центра.
Все коды ошибок кондиционеров LG
Код неисправности
Расшифровка кода ошибки
00
Text the 1, 2 or 3 digit fault code number only. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. 01
Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
1
Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
02
Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. 2
Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. 03
Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power
3
Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power
04
RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. 4
RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. 05
Comms Error, check your wiring, remove external pumps. Split/Multi – check volts from terminal N to 3 = 0 – 65 Vdc, Multi V – 4 Vdc terminals 3 and 4
5
Comms Error, check your wiring, remove external pumps. Split/Multi – check volts from terminal N to 3 = 0 – 65 Vdc, Multi V – 4 Vdc terminals 3 and 4
06
Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21
6
Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21
07
Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. 7
Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. 08
Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. 8
Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. 09
Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error – Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control. 9
Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error – Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control. 10
RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8
11
Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly
12
RAC Product = EEPROM Sum Check Error, text 60 for help. 13
RAC Product = PSC (Reactor) Error, text 27 for help. 14
RAC Product = Compressor Phase Current Error
15
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
16
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
17
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
18
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
19
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
20
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
21
Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current
22
Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms. Check to earth 50 MOhm minimum, check run current
23
Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB
24
Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip. 25
Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB
26
Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs
27
Inverter current irregularity. Check inverter PCB, check reactor connections and its resistance is less than 1 ohm. 28
Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB
29
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
30
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
31
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
32
Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge
33
Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge
34
Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework
35
Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open
36
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
37
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
38
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
39
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
40
Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs
41
Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. 42
Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
43
High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2. 5 Vdc = 37 bar
44
Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C. If OK replace PCB, if not replace sensor
45
Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
46
Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
47
Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor
48
Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics
49
Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB
50
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
51
Unit mismatch. Check model number of units do not exceed maximum. Multi V – also check Sub outdoor unit dipswitch settings
52
Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs. If OK either inverter or main PCB defective
53
Comms error indoor to outdoor unit. Check your wiring. Split and Multi – check voltage from terminal N to 3 = 0 – 65 Vdc, Multi V – 4 Vdc terminals 3 and 4
54
Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
55
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
56
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
57
Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective
58
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
59
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
60
Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable. 61
Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables
62
Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V – check inverter cooling fan
63
Multi F(DX) – “Cond. Pipe Sensor Temp. Low” (opposite to Error Code 61). Check Temperature/Resistance reading and replace sensor if found to be faulty. If sensor okay, check for cause of low temperature and rectify. 64
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
65
Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C
67
Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and/or electrical failure, if okay replace pcb. 100
Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant
101
Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant
102
Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
103
Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
104
Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
105
Communication error between outdoor main PCB and fan PCB. Check plug connections and LEDs. If OK, replace either main or fan PCB
106
Outdoor unit fan motor high current. Check fans rotate freely, and are connected correctly
107
Outdoor unit low voltage to fan PCB. Check 300 Vdc supply, check fuses and plug connections. If OK, replace fan PCB
108
Communication error between outdoor main PCB, and fan PCB. Check plug connections and LEDs. If OK replace either main or fan PCB
109
Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
110
Sub 1 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
111
Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
113
Main outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
114
Main outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
115
Main outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
116
Sub 1 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2. 5 Vdc = 37 bar
117
Sub 1 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
118
Sub 1 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
120
Sub 1 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor
121
Sub 1 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
122
Sub 1 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
123
Sub 1 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
124
Sub 1 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
125
Sub 1 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
126
Sub 1 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
127
Sub 1 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
128
Sub 2 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2. 5 Vdc = 37 bar
129
Sub 2 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
130
Sub 2 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
132
Sub 2 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor
133
Sub 2 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C. if not replace sensor
134
Sub 2 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C. if not replace sensor
135
Sub 2 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
136
Sub 2 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
137
Sub 2 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
138
Sub 2 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
139
Sub 2 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
140
Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
141
Sub 2 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
142
Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
143
Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
144
Sub 1 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
145
Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
146
Sub 2 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
147
Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
148
Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
149
Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
150
Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
151
Faulty 4 way valve. Check solenoid coil and output from PCB. If OK, mechanical failure. 152
Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
153
Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant
154
Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
155
Sub 3 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
156
Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units
157
Sub 3 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2. 5 Vdc = 37 bar
158
Sub 3 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
159
Sub 3 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
161
Sub 3 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor
162
Sub 3 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
163
Sub 3 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor
164
Sub 3 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
165
Sub 3 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
166
Sub 3 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
167
Sub 3 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
168
Sub 3 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C
169
Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
170
Sub 3 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris
171
Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
172
Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB
173
Main outdoor unit standard compressor not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
174
Sub 1 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
175
Sub 1 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
176
Sub 2 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
177
Sub 2 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty
204
Comms Error between Outdoor Unit and HR Box No1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB
208
Comms Error between Outdoor Unit and HR Box No2. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB
212
Comms Error between Outdoor Unit and HR Box No3. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB
240
Central controller wiring error. Check all comms wiring, including between controller and CNU, and IP addresses. If OK possible defective CNU
241
Central controller data sending error. Either defective CNU or Central controller initialisation failure
242
Central controller data receiving error. Either defective CNU or Central controller initialisation failure
243
Central controller. Comms cable too long or picking up external electrical noise. If OK, mismatching of controllers, or defective CNU
244
Central controller data receiving time out. Either defective CNU or Central controller initialisation failure
245
Central controller data sending time out. Either defective CNU or Central controller initialisation failure
246
Central controller data receiving time out. Either defective CNU or Central controller initialisation failure
250
Central controller data receiving error. Either comms cable picking up external electrical noise, or defective CNU
251
Central controller receiving no data. Either comms cable picking up external electrical noise, or defective CNU
252
Central controller incorrect address error. Check addresses match, if OK either comms cable picking up external electrical noise, or defective CNU
253
Central Controller Disconnection Error, No response from Air Conditioner. Check wiring, if OK either comms cable picking up external electrical noise, defective CNU, or Interface. C1
Indoor unit return air sensor fault, Open or Short. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
C2
Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. C4
RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. C5
Comms Error, check your wiring, remove external pumps. Split/Multi – check volts from terminal N to 3 = 0 – 65 Vdc, Multi V – 4 Vdc terminals 3 and 4
C6
Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current
C7
Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. C8
Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. C9
Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. CA
Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. CC
RAC Product = EEPROM Sum Check Error, text 60 for help. Cd
RAC Product = PSC (Reactor) Error, text 27 for help. CE
RAC Product = Compressor Phase Current Error
CH00
Text the 1, 2 or 3 digit fault code number only. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. CH01
Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor
CH02
Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. CH03
Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power
CH04
RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. CH05
Comms Error, check your wiring, remove external pumps. Split/Multi – check volts from terminal N to 3 = 0 – 65 Vdc, Multi V – 4 Vdc terminals 3 and 4
CH06
Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21
CH07
Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. CH08
Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no
Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. CH09
Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = indoor PCB failure. Replace PCB
CH10
RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8
CH11
Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly
CH12
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH13
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH14
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH15
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH16
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH17
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH18
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH19
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH20
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH21
Inverter compressor run current high. Check compressor windings all equal 1 to 4 OhmsCheck to earth 50 MOhm minimum, check run current
CH22
Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms. Check to earth 50 MOhm minimum, check run current
CH23
Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB
CH24
Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip. CH25
Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB
CH26
Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs
CH27
Inverter current irregularity. Check inverter PCB and reactor
CH28
Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB
CH29
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH30
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH31
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH32
Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge
CH33
Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge
CH34
Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework
CH35
Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open
CH36
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH37
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH38
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH39
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH40
Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs
CH41
Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20C and 168 kOhm at 30C. CH42
Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar
CH43
High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2. 5 Vdc = 37 bar
CH44
Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor
CH45
Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
CH46
Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor
CH47
Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor
CH48
Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics
CH49
Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB
CH50
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH51
Unit mismatch. Check model number of units do not exceed maximum. Multi V – also check Sub outdoor unit dipswitch settings
CH52
Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs. If OK either inverter or main PCB defective
CH53
Comms error indoor to outdoor unit. Check your wiring. Split and Multi – check voltage from terminal N to 3 = 0 – 65 Vdc, Multi V – 4 Vdc terminals 3 and 4
CH54
Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault
CH55
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH56
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH57
Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective
CH58
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH59
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH60
Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable. CH61
Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables
CH62
Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V – check inverter cooling fan
CH63
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH64
no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message
CH65
Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C
CH67
Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and electrical failure. CL
CL = Child Lock. Press Timer & Min buttons simultaneously for 5 seconds to engage/disengage function. help
Text the 1, 2 or 3 digit fault code number only. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. HL
Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. Alternatively, Dry Contact Interface is in “OFF” condition. Check status and adjust as necessary. Po
Po = Jet Cool Mode selected. To cancel press Jet Cool, Fan Speed or Set Temperature button.