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PROBLEM
Fan does not turn when
electricity is connected.
Heater will not fire (ignite).
Heater stops running
by itself.
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WIRING DIAGRAM
TROUBLESHOOTING GUIDE
BE SURE TO FOLLOW SAFETY RULES AND INSTRUCTIONS
POSSIBLE CAUSE
1. No electric power to heater.
2. Blades of fan in contact with heater
housing.
3. Fan blades bent.
4. Fan motor defective.
1 . No spark at module.
2 . Incorrect spark gap.
3 . Corroded electrode.
1 . Temperature inside heater is too high,
causing thermal switch to shut down
operation.
2 . Damaged control valve.
3 . Dust or debris accumulated
in heater.
EXPLODED VIEW
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1 . Check current at outlet. If voltage is correct, inspect extension and power
cords for cuts, frays or breaks
2 . Check housing for damage. Be sure there are no dents in the housing
obstructing the fan.
3 . Straighten all fan blades.
4 . Replace motor assembly.
1 . Inspect module wire. Re-attach or tighten if loose. Inspect spark module
and replace if necessary. Inspect all other electrical components.
2 . Set plug gap to 0.16" (4 mm).
3 . Replace spark plug
(multi-bracket assembly).
1 . If the heater input or output is restricted, the inside temperature can
become too hot. Keep the areas in front and behind heater clear of
obstructions.
2 . Replace control valve.
3 . Clean inside of heater.
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SOLUTION
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