Resetting Phenomenon Often Occurs During Operation; Operation Lamp Flashes And Timer Lamp Off; Operation Lamp Flashes And Timer Lamp On - Midea MSG-05CR Service Manual

12.4 Resetting phenomenon often occurs during operation.

(That is automatically entering to the status when power is on.)
The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the
following procedure:
Resetting phenomenon often occurs during operation.
After changing indoor PCB, check if the failure realease.
After changing indoor fan motor, check if the failure realease.
Power supply circuit has problems.

12.5 Operation lamp flashes and Timer lamp off.

12.6 Operation lamp flashes and Timer lamp on.

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Yes
Yes
YES
Service manual
Yes
Indoor PCB is defective.