Black & Decker MUZ-FD12NA- U1, MUZ-FD09NA Check of inverter P.C. board, Emergency Operation

Outdoor fan motor does not operate, or stops immediately after starting up.

L Check of inverter P.C. board

Check the outdoor fan motor. (Refer to10-5..)

Is the fuse (F901) blown on the in- verter P.C. board?

No

Check the connection of the connectors (CN932) of the outdoor fan motor.

If the connection is poor, make it correct.

Operate the outdoor unit by starting

EMERGENCY OPERATION.

Check the LED indication on the in- verter P.C. board.

Does the LED flash 10-time?

Yes

(10-time flash)

Replace the inverter P.C. board.

Yes
	Inverter P.C. board
	(Solder side)
	CN932
	Check the corresponding parts
No	following LED indication.
	(Refer to 10-3.)

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