Keeprite Air
Conditioner Error Codes
Error Codes
|
Trouble
|
E1
|
High pressure protection of system
|
E2
|
Anti-freezing protection
|
E3
|
Block or Low pressure of refrigerant system
|
E4
|
Compressor exhaust high temperature protection
|
E5
|
AC over-current protection
|
E6
|
Communication failure between indoor unit and outdoor unit
|
E8
|
Anti-high temperature protection
|
H4
|
Anti-high temperature protection
|
H6
|
No feedback of indoor fan motor
|
C5
|
Jumper cap malfunction protection
|
LP
|
Indoor unit and outdoor unit doesn't match
|
L3
|
Outdoor DC fan motor malfunction
|
L9
|
Power protection
|
Fo
|
Gathering refrigerant
|
F1
|
Indoor ambient sensor open or short circuit
|
F2
|
Indoor tube sensor open or short circuit
|
F3
|
Outdoor ambient sensor open or short circuit
|
F4
|
Outdoor tube sensor open or short circuit
|
F5
|
Exhaust sensor open or short circuit
|
How to fix E1?
High pressure protection of system
Ac Status: During the
cooling and drying operation, all loads stop operating except the indoor fan.
During the heating operation, the entire unit stops.
Possible Reasons:
- Refrigerant
is superabundant;
- Poor heat exchange (including a bad radiating
environment ); the ambient temperature is too high.
How to fix E2?
Anti-freezeprotection
Ac Status: During the
cooling and drying operation, the compressor and outdoor fan stop while the
indoor fan operates.
Possible Reasons:
- Poor
air-return in indoor unit;
- Fan
speed is abnormal;
- Evaporator is dirty.
How to fix E4?
High discharge temperature protection of compressor
Ac Status: During the
cooling and drying operation, the compressor and outdoor fan stop while the
indoor fan operates. During the heating operation, all loads stop.
Possible Reasons: Refer
to the malfunction analysis (discharge protection, overload).
How to fix E5?
Overcurrent protection
Ac Status: During the
cooling and drying operation, the compressor and outdoor fan stop while the
indoor fan operates. During the heating operation, all loads stop.
Possible Reasons:
- Supply
voltage is unstable;
- Supply
voltage is too low and the load is too high;
- Evaporator is dirty.
How to fix E6?
Communication Malfunction
Ac Status: During the cooling operation, the compressor
stops while the indoor fan motor operates. During the heating operation, the
entire unit stops.
