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Malfunction analysis
Error Code
● When air conditioner status is abnormal, temperature indictor on indoor unit will
ation of error code.
Error code
Error code
Heating indicator ON 10s OFF 0.5s
E5: overcurrent protection
C5:Connector jumper malfunction
F1:Indoor ambient temp. sensor
malfunction
F2:Evaporator temp.sensor
malfunction
H6:PC motor (indoor fan) can't run
U8:Malfunction of zero cross detection
circuit for PG motor (indoor fan)
Defrosting or oil return mode
Note:
service.
WARNING
■ When below phenomenon occurs, please turn off air conditioner and discon-
for service.
● Power cord is overheating or damaged.
● There's abnormal sound during operation.
● Circuit break trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
■ If the air conditioner operates under abnormal conditions, it may cause
Above indicator diagram is only
for reference. Please refer to
Indoor
actual product for the actual
display
indicator and position.
Troubleshooting
Means defrosting status. It's the normal phenomenon.
Power indicator blinks and E5 is displayed
Check if the connector jumper contacts the
properly. If replace the PCB, please take off
the old for the new PCB.
Check if indoor room temp. sensor is connected
properly?
Check if indoor tube temp. sensor is
connected properly?
Feedback terminal of PG motor hasn't been
●
connected firmly.
The control end of PG motor hasn't been
●
connected firmly.
Fan blade hasn't been installed correctly
●
and it can't run smoothly.
Motor hasn't been installed correctly and tightly.
●
Motor has been damaged.
●
Control panel has been damaged.
●
Control panel has been damaged.
It is normal. The indicating lamp in heat mode will
wink 0.5s and light 10s.
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