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34
DIAGNOSTIC CODES
No.
6
7
8
9
10
Description
If the indoor unit does not receive signal from indoor fan motor
for 30-sec successively when the fan motor is operating, indoor
fan motor malfunction will be reported. In this case, the unit can
automatically resume operation after stopping. If the malfunction
occurs 6 times within one hour, the unit cannot be recovered
automatically. Switch off the unit or re-energize the unit after
cutting off power to eliminate this malfunction.
If indoor unit detects the condensate overflow switch warning for
8-sec successively, the system will enter condensate overflow
protection. The unit will shut off and will not recover automatically.
Switch unit off and then switch it on to eliminate this malfunction.
If indoor unit detects the indoor ambient temperature sensor is open
circuit or short circuit for 5-sec successively, indoor ambient temp.
sensor malfunction will be reported. The unit can automatically
resume operation after the malfunction disappears. If indoor ambient
temperature sensor malfunction occurs in fan mode, only the error
code is displayed and the indoor unit will operate normally.
If indoor unit detects the evaporator temperature sensor is open
circuit or short circuit for 5-sec successively, evaporator temperature
sensor malfunction will be reported. The unit can automatically
resume operation after the malfunction disappears. If evaporator
temperature sensor malfunction occurs in fan mode, only the error
code is displayed and the indoor unit will operate normally.
If outdoor unit detects the condenser coil temperature sensor open
circuit or short circuit for 5-sec successively, condenser coil temperature
sensor malfunction will be reported. The unit can automatically
resume operation after the malfunction disappears. If condenser
temperature sensor malfunction occurs in fan mode, only the error
code is displayed and the indoor unit will operate normally.
Error
Code
E8
E9
F0
F1
F2
Malfunction
Name
Condensate
Overflow
Protection
Indoor Ambient
Temperature
Sensor at
Return Air Inlet
Malfunction
Indoor
Evaporator Coil
Temperature
Sensor
Malfunction
Indoor
Condenser Coil
Temperature
Sensor
Malfunction
Origin of
Malfunction
Indoor
Fan Motor
Overflow
Switch
Indoor
Ambient
Temperature
Sensor
Evaporator
Coil
Temperature
Sensor
Condenser
Coil
Temperature
Sensor
Error Codes
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