Troubleshooting Chart

TROUBLE

CAUSE

REMEDY

 

 

 

Dryer runs, but no heat

Line fuse or heater circuit fuse

Replace fuse.

(continued).

blown to unit

 

 

Defective door switch

Check continuity across contacts, opened & closed. If

 

 

defective, replace door switch.

 

 

 

 

Air switch not operating

Clean out lint compartment daily. Check back draft

 

 

damper for foreign objects, lint accumulation or other

 

 

causes that may prevent damper from opening. Check

 

 

duct work for lint build-up. Refer to Installation Manual

 

 

to ensure duct work and make-up air openings are

 

 

properly sized. Check exhaust outlet. If a screen has

 

 

been improperly installed on the outlet, it may be

 

 

clogged with lint or frozen over in Winter. Never install

 

 

a screen on the exhaust outlet. Vacuum within dryer

 

 

drops to .09 inches of water column, or less, for normal

 

 

operation of dryer, vacuum reading (in inches of water

 

 

column) should range between .15 and .3 inches.

 

 

Vacuum reading can be made with a vacuum U-gauge

 

 

by removing a sheet metal screw in the back panel or

 

 

right panel at front bottom corner and inserting the

 

 

rubber tube of the vacuum gauge into screw opening.

 

 

 

 

Air switch out of adjustment

Refer to Air Switch Adjustment section.

 

 

 

 

Air switch defective

Check continuity across contacts, opened and closed.

 

 

If defective, replace switch with power off. Check

 

 

manifold pressure and adjust to pressure specified on

 

Gas pressure too low

rating plate. If this pressure cannot be obtained, have

 

 

gas supplier check main pressure.

 

 

 

 

Improper orifice

Dryer is orificed for type of gas specified on rating

 

 

plate. Check with gas supplier to determine specifica-

 

 

tions for gas being used. If different from rating plate,

 

 

contact factory to obtain proper orifices.

 

 

 

 

Electric power to heating unit

Turn power on.

 

turned off

 

 

 

 

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