Heat Controller RAD-243A, RAD-183A service manual Troubleshooting Guide, Complaint, Cause, Remedy

		Troubleshooting Guide
COMPLAINT	CAUSE	REMEDY
Compressor cycles	Capacitor	Test capacitor.
on overload.
	Wiring	Check the terminals. If loose, repair or replace.
	Refrigerating system	Check the system for a restriction.
Insufficient cooling or heat-	Air filter	If restricted, clean of replace.
ing	Exhaust damper door	Close if open.
	Unit undersized	Determine if the unit is properly sized for the area to
		be cooled.
Excessive noise.	Turbo or fan	Check the set screw or clamp. If loose or missing,
		correct. If the blower or fan is hitting air guide,
		rearrange the air handling parts.
	Copper tubing	Remove the cabinet and carefully rearrange tubing
		not to contact cabinet, compressor, shroud, and bar-
		rier.
Auto air-swing fails.	Rotary switch.	Set the knob to HIGH COOL or LOW COOL while
		rocker switch is ON.
	Wiring	Check terminals. If loose, repair or replace.
	Synchronous motor.	Check the synchronous motor for open circuit.

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