Samsung AQ18MSBN Manual do Utilizador descarregar pdf (Página 6)

3-2-3 Indoor Unit Fan Motor Error

Alignment and Adjustments

3-6 Samsung Electronics

1. Checklist :

1) Is the indoor unit fan motor properly connected with the connector (CN72)?

2) Is the AC voltage correct?

3) Is HALL IC in indoor fan motor properly connected with the connector (CN44)?

4) Is the running capacitor (CR71) properly connected with PCB board?

2. Troubleshooting procedure

After unplugging out the power cord should

be reconnected within 5 seconds.

Does the OPERATION lamp blink?

Does the Solid State Relay(SS71) work properly?

Is the supply voltage of the fan motor sufficient?

Test rod location

PCB CN72

Condition

About AC180V

Normal

voltage

pin #3 and #5 Fan operating

Yes

Check as in the procedure "No power".

PCB is

out of order.

PCB should be replaced.

Replace Motor

Fan-Capacitor

Fan motor should be replaced.

Fan motor is out of order.

Motor Fan-Capacitor is out of order

Test rod location

SS71-SS71-

12V

Normal

Voltage

Micom is

out of order.

Micom should be replaced

Error Mode

LAMP 7-segment Display

Indoor Unit Fan Motor Malfunction

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Samsung AQ18MSBN Manual do Utilizador Página 6