102
Alarm
Code
54
Abnormality of Inverter Fin Temperature
●
The alarm code is ashed on the 7-segment display of the outdoor unit.
●
The alarm code is displayed on the wired controller of the indoor unit.
★
When the following condition occurs three times in 30 minutes, the operation stops and this alarm code
is displayed. If this occurs less than three times in 30 minutes, the operation automatically restarts.
Condition of Activation:
(1) Fin temperature increases
Main causes: Increased temperature of the ns of the heat dissipation module
(2) Thermistor failure
Main causes: Abnormality of driver temperature sampling circuit, and so on.
Restart operation.
Does it trip soon?
Is heat exchanger of
outdoor unit clogged?
No
Replace inverter PCB.
Remove clogging.
Yes
Yes
No
Replace inverter PCB.
TROUBLESHOOTING
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