Friedrich CP12E10 manual 25Room Air Conditioner, Troubleshooting Guide, Complaint, Cause, Remedy

Troubleshooting Guide

ROOM AIR CONDITIONER VOLTAGE LIMITS

NAME PLATE RATING	MINIMUM	MAXIMUM
115V ± 10%	103.5V		126.5V
COMPLAINT	CAUSE			REMEDY
Fan motor will not run.	No power		Check voltage at outlet. Correct if none.
	Power supply cord		Check voltage to rotary switch. If none, check
			power supply cord. Replace cord if circuit is
			open.
	Rotary switch		Check switch continuity. Refer to wiring diagram
			for terminal identification. Replace switch if
			defective.
	Wire disconnected or		Connect wire. Refer to wiring diagram for
	connection loose		terminal identification. Repair or replace loose
			terminal.
	Capacitor (Discharge		Test capacitor.
	capacitor before testing.)		Replace if not within ±10% of manufacturer's
			rating. Replace if shorted, open, or damaged.
	Will not rotate		Fan blade hitting shroud or blower wheel hitting
			scroll. Re-align assembly.
			Units using slinger ring condenser fans must
			have 0.22~0.25 inch clearance to the base.
			If necessary, shim up the bottom of the fan motor
			with mounting screw(s).
			Check fan motor bearings; if motor shaft will not
			rotate, replace the motor.
Fan motor runs.	Revolves on overload		Check voltage. See limits on this page.
			If not within limits, call an electrician.
			Test capacitor.
			Check bearings. Does the fan blade rotate
			freely?
			If not, replace fan motor.
			Pay attention to any change from high speed to
			low speed. If the speed does not change,
			replace the motor.

25Room Air Conditioner