Heater System

Symptom Problem Solution

Heater System Does Not Operate

Blower motor fuse

Replace fuse.

Blower speed switch

See your authorized dealer.

Wiring harness

Check wiring harness. See your authorized dealer.

Heater Does Not Warm Interior of Cab

Air filter clogged

Clean or replace filter.

Heater hose kinked, pinched or collapsed

See your authorized dealer.

Heater coil fins clogged with dirt or dust

Clean heater fins.

Blower motor failed or operating too slowly

See your authorized dealer.

Heater valve remaining closed

See your authorized dealer.

Temperature control switch

See your authorized dealer.

Interior Windows Continue to Fog

Cab air filter clogged

Clean or replace filter.

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