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Check code
5300
Abnormal points and detection methods
Abnormal if the detected current sensor input value (primary current)
during compressor operation is outside the specified range.
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting
any connectors, or replacing boards.
Check the input current at the time of
abnormal stop.
Does it satisfy the condition 1(*)
in the lower right?
Check the compressor wiring for
disconnection or looseness.
Is there any abnormality such as
a disconnection or looseness?
OCH576
Primary current error
Diagnosis
* Applicable only for P112/125/140V model.
No
No
Causes and check points
Decrease/ trouble of power supply voltage
Disconnection of compressor wiring
Input sensor trouble on outdoor power circuit board
The power supply voltage is decreased or
abnormal.
Yes
Check the power supply facility.
Condition 1:
Model
P112/125/140V
Connect the compressor wiring properly.
Yes
Replace the outdoor power circuit board
(Malfunction of current sensor circuit).
89
Remedy
Error detecting condition
34A or more for 10 consecutive
seconds, or 38A or more
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