Toshiba RAS-09LAV-UL, RAS-09LKV-UL, RAS-12LAV-UL, RAS-12LKV-UL manual 79

FILE NO. SVM-10019

( RAS-12LKV-UL )

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

		YES	Is it possible to detect			NO
Does fan motor
			DC 1V or more between
continue to operate?			5 + and 3 – of
	NO		motor connector (CN31).
				YES
Does check		NO	Does check connecting			NO	Reconnecting the
operation LED flash?			cable or power supply				in terconnection cable
			cord complely?				and terminal block
	YES
				YES
					NO				NO
			Does check				Does check 5V
			5V at display unit?				at main P.C board?
				YES				YES
Start to operate
							Replace
indoor unit in cooling
							display unit
operation at airflow
level “LOW”.

Peplace indoor fan motor.

Does indoor fan operate?

YES

NO		Is it possible to detect	NO
	DC 294–325V between
	1	+ and 3 – of motor
		connector (CN31).

Change airflow level to “HIGH”.

YES

(Motor connection condition)	NO
Is it possible to detect DC 15V
between 4 + and 3 – of

motor connector (CN31).

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 (CN31)?

YES

Turn off indoor unit and remove connector from motor. Then push [ ] 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 (CN31).

YES

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

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 (CN31)? (Check this condition within 15 seconds after starting unit.)

Peplace main P.C. board.

YES

AB

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