Page 28
Troubleshooting Chart
Troubleshooting Chart
TROUBLE
CAUSE
REMEDY
See air switch adjustment sheet.
Replace air switch.
Check manifold pressure and adjust to pressure
specified on rating plate. If this pressure cannot be
obtained, have gas supplier check main pressure.
Orifices have been sized for type of gas specified on
rating plate. Check with gas supplier to determine
specifications for gas being used. If different from
rating plate, contact factory and obtain proper
orifices.
Turn power on.
Replace fuse.
Replace relay.
Replace elements.
Replace thermostat.
Replace thermostat.
Close door.
Space 1/4" (7 mm) from burner opening
Blow out.
Adjust gas pressure per rating plate.
Send to factory for correct orifices.
Clean exhaust.
Replace direct spark igniter.
Replace orifices. Check factory for correct size.
Dryer runs, but no heat.
(continued)
Main burners
burning improperly.
Main burner cycles on
and off.
Low or high gas flame.
Air switch out of adjustment.
Air switch defective.
Gas pressure too low.
Improper orifices.
Electric power to heating unit
turned off.
Line fuse or heater circuit fuse
blown to unit.
Defective relay.
Defective electric elements.
Defective thermostat.
Defective safety overload thermo-
stat.
Lint compartment door open.
Orifice location incorrect
Dirt in burner.
High gas pressure.
Orifice too large.
Restricted or blocked exhaust.
Direct spark ignition
defective.
Incorrect main burner orifices.
