Whirlpool L-63 manual Section Four, Troubleshooting Guide

SECTION FOUR

TROUBLESHOOTING and DIAGNOSIS

TROUBLESHOOTING GUIDE

CONDITION	POSSIBLE CAUSE	SOLUTION
Dryer will not run.	No power to unit.	Check voltage supply.
	Door switch not making.	Check door switch siring and continuity.
	Thermal fuse open.	Check fuse continuity.
	Broken belt or belt switch.	Check for broken belt or check belt switch
		for continuity.
	Timer	Check timer contacts for continuity.
	Motor	Check voltage to motor, contacts 4 & 5,
		(120VAC). Check motor windings for
		continuity, (2-4 ohms).
	Push-to-start relay	Check PTS contacts R1 - R2, while
		pushing start switch. Check PTS relay coil
		R2 - CT1 for continuity.
No heat in dryer.	Improper voltage supply.	Check for 240VAC. (electric dryer)
	Heater Element	Check heater continuity, (8-12 ohms).
	Gas Burner	Check for voltage (120VAC) to burner
		assembly.
		Check ignitor continuity.
		Check for gas supply.
		Check flame switch continuity, (0 ohms
		when cold).
		Check gas valves for continuity.
	Thermostat	Check thermostat for continuity.
	Thermal cut-off, Hi-limit	Check for continuity.
	thermostat
	Motor centrifugal switch	Manually close centrifugal switch contacts,
		check for continuity, (1M-2M ohms).
Drum will not rotate.	Broken belt	Check belt.
	Broken belt switch	Check for continuity.
	Idler pulley binding.	Check for proper operation of idler pulley.
Not heating enough.	Blocked air flow	Check lint filter, blower housing, internal
		and external ducting and exhaust hood.
	Thermostat cycling too low.	Check exhaust temperatures for proper
		cycling.
Temperature too hot.	Thermostat heater open	Check heater for continuity, (3200-4000
		ohms).
		Check selector and wiring for continuity.
Auto cycle timer won’t	Timer	Check timer motor continuity, (4000-6000
advance.		ohms).
	Electronic control	See checkout procedure.
	Dryness sensor	See checkout procedure.

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