31
Maintenance
ERROR CODES DISPLAYED ON THE REMOTE CONTROL.
Use the “Query mode” function on the remote control to display the alarms (see: technical manual special modes).
Error code Description
EH 00 /
EH 0A
Indoor unit EEPROM parameter error
EL 01 Indoor / outdoor unit communication error
EH 02 Zero-crossing signal detection error
EH 30 Over low voltage protection of indoor external fan
EH 31 Over voltage protection of indoor external fan
EH 03 The indoor fan speed is operating outside of the normal range
EC 51 Outdoor unit EEPROM parameter error
EC 52 Condenser coil temperature sensor T3 is in open circuit or has short circuited
EC 53 Outdoor room temperature sensor T4 is in open circuit or has short circuited
EC 54 Compressor discharge temperature sensor TP is in open circuit or has short circuited
EC 56 Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited
EH 60 Indoor room temperature sensor T1 is in open circuit or has short circuited
EH 61 Evaporator coil temperature sensor T2 is in open circuit or has short circuited
EC 07 The outdoor fan speed is operating outside of the normal range
EH 0b Indoor PCB/Display board communication error
EL 0C Refrigerant leak detected
PC 00 IPM malfunction or IGBT over-strong current protection
PC 10 Over low voltage protection
PC 11 Over voltage protection
PC 12 DC voltage protection
PC 02 Compressor top high temperature protection (OLP)
PC 03 Pressure protection
PC 40 Communication error between outdoor main chip and compressor driven chip
PC 41 Current Input detection protection
PC 42 Compressor start error
PC 43 Lack of phase (3 phase) protection
PC 44 No speed protection
PC 45 341PWM error
PC 46 Compressor speed malfunction
PC 49 Compressor over current protection
-- Indoor units mode conflict(match with multi outdoor unit)
PC 0A Condenser high temperature protection
PC 06 Compressor discharge temperature protection
PC 08 Outdoor current protection
PH 09 Anti-cold air in heating mode
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