Airwell AWWR-WDF009-C12, Руководство по обслуживанию

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Window F4 18 Version - 0
11 Troubleshooting
In general, possible trouble is classified in three kinds. One is called Starting Failure
which is caused from an electrical defect, another is ineffective Air Conditioning caused
by a defect in the refrigeration circuit and improper application, and the other is called the
Structure Damage.
Operation panel don't work.
Check the power supply.
Press the "LED" button of remote controller several times and
check whether the problem is settled down.
Check the wiring of display board.
Repair the wiring.
Replace the display board.
Replace the main control board.
No
No
No
No
Yes