23
Is connector connection good?
Repair the
connector
Is voltage being applied to the fan motor?
Indoor
control board
is defective
Fan motor is defective
Yes
Yes
No
Resetting of outdoor control board often occurs during operation.
After changing indoor control board, check if the failure is repaired.
Indoor control board
is defective
After changing indoor fan motor, check if the failure is repaired.
Power supply circuit has problems
Yes
No
Yes
Yes
TROUBLESHOOTING
Resetting of Outdoor Control Board Occurs Often During Operation:
If the power is on and the unit automatically enters into reset mode, the instantaneous voltage of the main chip is less
than 4.5v. Check according to the following procedure:
Indoor Fan Speed Not Responding Properly (12k Models Only)
If the indoor fan speed has been unresponsive for over 1 minute:
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