11-10. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

1.Symptom

•Outdoor fan motor does not rotate.

•Outdoor fan motor stops within several tens seconds though it started rotating.

•Outdoor fan motor rotates or does not rotate according to the position where the fan stopped, etc. Remote controller check code “02 : Outdoor block, 1A : Outdoor fan drive system error”

2.Cause

The following causes are considered when the outdoor fan motor does not normally rotate. 1) Mechanical lock of the outdoor fan motor

2) Winding failure of the outdoor fan motor

3) Position-detect circuit failure inside of the outdoor fan motor

4) Motor drive circuit failure of the outdoor P.C. board

3.How to simply judge whether outdoor fan motor is good or bad

Turn OFF the breaker.

Disconnect two connectors (CN300) of the

outdoor fan motor from the outdoor P.C. board.

Does the fan rotate without trouble

NO

 

when rotating it with hands?

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

If the resistance value between

 

1

(Red lead)

–

2

(White lead)

 

2

(White lead)

–

3

(Black lead)

NO

3

(Black lead)

–

1

(Red lead)

 

 

of the connector

(CN300 : Motor winding) is 17 to 25Ω, it is normal.

CN300

YES

Fan motor is normal.

(Outdoor P.C. board error)

Fan motor error

NOTE :

However, GND circuit error inside of the motor may be accepted in some cases when the above check is performed.

When the fan motor does not become normal even if P.C. board is replaced, replace the outdoor fan motor.

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Toshiba RAS-13GAVP-E, RAS-B16GKVP-E, RAS-B13GKVP-E, RAS-B10GKVP-E, RAS-16GAVP-E, RAS-10GAVP-E service manual Symptom, CN300
Page 80 Page 82

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