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Maintenance
4.8 Error codes displayed on the indoor unit display
Error code Cause Timer light
dF Defrost --
CL Filter cleaning reminder (power on display for 15 seconds) --
CL Active clean --
nF Filter replacement reminder(power on display for 15 seconds) --
FP Heating in room temperature under 8°C --
FC Forced cooling --
AP AP mode of WIFI connection --
CP Remote switched o --
EH 00 /
EH 0A
Indoor unit EEPROM parameter error OFF
EL 01 Indoor/outdoor unit communication error OFF
EH 02 Zero-crossing signal detection error OFF
EH 03 The indoor fan speed is operating outside of the normal range OFF
EC 51 Outdoor unit EEPROM parameter error OFF
EC 52 Condenser coil temperature sensor T3 is in open circuit or has short circuited OFF
EC 53 Outdoor room temperature sensor T4 is in open circuit or has short circuited OFF
EC 54
Compressor discharge temperature sensor TP is in open circuit or has short
circuited
OFF
EC 56
Evaporator coil outlet temperature sensor T2B is in open circuit or has short
circuited (for free-match indoor units)
OFF
EH 60 Indoor room temperature sensor T1 is in open circuit or has short circuited OFF
EH 61
Evaporator coil middle temperature sensor T2 is in open circuit or has short
circuited
OFF
EC 07 The outdoor fan speed is operating outside of the normal range OFF
EH 0b Indoor PCB/Display board communication error OFF
EL 0C Refrigerant leakage detection OFF
PC 00 IPM malfunction or IGBT over-strong current protection Flashing
PC 01 Over voltage or over low voltage protection Flashing
PC 02
Top temperature protection of compressor or High temperature protection of IPM
module or High pressure protection
Flashing
PC 04 Inverter compressor drive error Flashing
PC 08 Current overload protection Flashing
PC 40 "Communication error between outdoor main chip and compressor driven chip" Flashing
PC 03 Low pressure protection Flashing
-- Indoor units mode conflict (match with multi outdoor unit) ON
NOTE: To case of an alarm, the operation light (flashes)
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