Heat Controller RAD-243A, RAD-183A Troubleshooting Guide, Possible Trouble 4 FAN does not operate

Troubleshooting Guide

Possible Trouble 4 FAN does not operate.

Is the voltage NO.1 or 4

of IC01M DC 5V?

NO

• Exchange IC01M.

	YES
Is the voltage NO.13 or 16		NO
of IC01M 0V?

YES

•Check the RY-Hi or RY-Lo.

•Check the wiring diagram.

Possible Trouble 5 Auto Swing does not operate.

Is the voltage NO.6		NO
of IC01M DC 5V?
	YES
Is the voltage NO.11		NO
of IC01M 0V?

YES

•Check the RY-SYNC.

•Check the connectionn of CN-SYNC.

•Check the PCB pattern.

• Exchange IC01M.

• Exchange Micom.

• Exchange IC01M.

Service Manual 30