Section Four - Part C

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 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 motor windings for continuity, (2-4

 

 

ohms).

 

Push-to-start relay

Check PTS contacts R1 - R2, while push-

 

 

ing 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 as-

 

 

sembly.

 

 

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 ther-

Check for continuity.

 

mostat

 

 

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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Whirlpool 4322616 manual Troubleshooting and Diagnosis, Troubleshooting Guide