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TROUBLESHOOTING
PROBLEM
Fan is not spinning.
(Select models)
Fan is making a
loud noise.
(Select models)
LP ODS
NG ODS
POSSIBLE CAUSE
1. There is no power to the fan.
2. Fan is set to "AUTO".
3. Fan motor is bad.
1. Fan housing or blades are
dirty.
2. Fan rotation is blocked.
3. Defective fan.
ELECTRICAL WIRING DIAGRAM
GAS VALVE
MICRO
SWITCH
SELECTOR
VALVE
PRESSURE
SWITCH
REGULATORS
ELECTRICAL CIRCUIT
GAS TUBING
CORRECTIVE ACTION
1. Verify fan is plugged in and set to
"MAN" or "AUTO".
2. Allow 5-10 minutes for fan to engage.
3. Replace fan.
1. See "Cleaning Fan", page 22.
2. Verify wiring is not in fan path.
3. Replace fan.
NOTE: Pressure Switch opens at
8.0'' WC manifold pressure.
NOTE: If any of the original wire
as supplied with the appliance
must be replaced, it must be
replaced with a wire of at least an
equal temperature rating.
CAUTION: Label all wires
prior to disconnection when
servicing controls. Wiring
errors can cause improper and
dangerous operation. Verify
proper operation after servicing.
26
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