(3) Only the indoor motor fan does not operate

<Primary check>

1.Is it possible to detect the power supply voltage (AC220–240V) between Q and R on the terminal block?

2.Does the indoor fan motor operate in cooling operation?

(In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.)

Turn off power supply once, and turn it on again.

 

 

 

 

 

Is it possible to detect

NO

 

 

YES

 

 

Does fan motor

DC 1V or more between

continue to operate?

 

 

 

5 + and 3 – of

 

 

 

 

 

 

motor connector (CN10).

 

NO

YES

Start to operate indoor unit in cooling operation at airflow level “LOW”.

Peplace indoor fan motor.

Does indoor fan operate?

YES

NO

Is it possible to detect

NO

DC 310–340V between

 

 

1+ and 3 – of motor connector (CN10).

Change airflow level to “HIGH”.

YES

(Motor connection condition)

NO

Is it possible to detect DC 15V

between 4 + and 3 – of

 

 

 

motor connector (CN10).

 

 

 

YES

Start to operate the indoor unit in except

heating operation. NO At this time, is it possible to

detect DC 1V or more between

5+ and 3 – of motor connector (CN10)?

Turn off indoor unit and remove connector from motor.

Then push START/STOP button on remote controller to stop flashing lamp on indoor unit.

Is it possible to detect

NO

DC 15V between 4 +

 

 

and 3 – of motor

 

 

connector (CN10).

 

 

YES

Turn off indoor unit and remove connector from motor. Then start to operate indoor unit with remote controller.

Peplace main P.C. board.

YES

Is it possible to NO change airflow level

to “HIGH”?

YES

Is it possible to

NO

rotate cross-flow fan by

 

hand properly?

 

Start to operate the

 

indoor unit in except

 

heating operation.

 

At this time, is it possible

NO

to detect DC 1V or more

 

between 5 + and 3 –

 

of motor connector (CN10)?

 

(Check this condition

 

within 15 seconds after

 

starting unit.)

 

YES

Peplace bearing.

Fan motor operates normally.

YES

Turn off indoor unit and rotate cross-flow fan by hand when the

unit is on standby. NO At this time, is it possible to

detect DC 1V or more between 5 + and 3 – of motor connector (CN10).

YES

– 68 –

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Toshiba RAS-B10GKVP-E, RAS-B16GKVP-E Only the indoor motor fan does not operate Primary check, Is it possible to
Page 67 Page 69

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