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Marquis 38 22
TROUBLE SHOOTING Cont...
SYMPTOM ACTION
The main burner does not turn on with
the pilot lit.
Cont...
3. Check to make sure the thermostat is set high enough to turn on
the appliance.
4. Check that the remote switch or the thermostat is turned on.
5. Check for weak pilot flame. If flame is weak, check gas supply,
check pilot flame adjustment and check for blockage of pilot
orifice.
6. Check for 400-500 mV from the thermopile with the burner off
and 200-250 mV with the burner on. If the voltages are lower, the
thermopile is defective.
7. Check for defective gas valve.
The main burner shuts off when the
appliance is warm.
1. This may be the normal operation of a wall thermostat installed to
appliances.
2. Check for good pilot flames on the thermopile.
3. Check for good voltage from the thermopile.
Sooty deposits on the glass door.
1. If the flame is yellow and lazy, increase primary air by opening
the primary air shutter.
2. Check for proper placement of the logs and branches. See that
section in the instruction manual.
3. Check for obstruction of the burner ports by the embers. See that
section in the instruction manual.
4. Check for proper venting and blockage of the vent termination.
5. Check manifold pressure and clock input rating.
Sharp blue flames with flames lifting off
the burner at the ends.
1. Too much primary air. Reduce primary air by closing the primary
air shutter. During cold temperatures, some flame lifting may
occur during start-up.
Convection blower does not turn on.
1. The convection fan is thermostatically controlled. It will only turn
on when the appliance is warmed-up. This may take 5 to 15
minutes with the appliance on high.
2. Check for 120VAC electrical supply to the appliance.
3. Check for proper mounting of the thermal snap disc.
4. Check electrical connections.
5. Check for defective thermal snap disc.
6. Check for defective convection blower speed controller.
7. Check for defective convection blower.