Fault display on the indoor unit
Display
Error description
E0
EEPROM error, indoor unit
E1
Communication error between indoor unit and outdoor unit
E3
Fan speed control indoor unit disabled
E4
Room temperature probe T1 defective
E5
Temperature probe, evaporator T2 defective
F0
Overflow protection
F1
Temperature probe air inlet outdoor unit T4 defective
F2
Temperature probe, evaporator outlet T3 defective
F3
Temperature probe, heat gas line T5 defective
F4
EEPROM error, outdoor unit
F5
Condenser fan speed control probe not working
P0
Compressor actuation error
P1
Over-voltage or under-voltage error
P2
Compressor overheating protection (heat gas temperature too high)
P4
Inverter control disabled
EC
No cooling capacity after 30 minutes
For fault elimination refer to troubleshooting on the following pages.
11.2 Indoor unit fault analysis
Error code:
E0 / F4
Reason:
The control board of the outdoor unit or indoor unit cannot read the unit memory
(EEPROM)
Cause:
n
Installation error
n
Control boards of outdoor unit or indoor unit defective
Switch off voltage, switch on again 2 minutes
later. Is the error still present?
YES
Replace the circuit boards of the outdoor unit
and indoor unit in turn, in order to locate the
defective EEPROM
39
