Quadra-Fire • QFP44 • 4051-300 • Rev. U • 4/11
59
Troubleshooting (continued)
Symptom
Possible Causes
Corrective Actions
4.
Rear burner switch does
not turn OFF the back
burner.
a. Power failure.
Verify that 120 VAC is present at the unit. If power if OFF, the MLT
switch must be placed in the ON position unless an optional wall
thermostat or switch is installed. The optional thermostat or switch will
control the burner operation. The burner defaults to high when power
is OFF.
b. Rear burner switch is defective.
Ensure that the interface is securely attached to the switch.
Jumper the terminals of the switch. If the back burner goes OFF,
replace the switch.
c. 9vdc power supply defective.
Disconnect the power supply from the interface. Use a dc volt meter
on the plug the tip is positive. If the voltage is less than 9vdc, replace
the power supply.
d. Defective interface module.
Disconnect the front solenoid red and black wires. Momentarily touch
to a 9 volt battery. Reverse the battery and momentarily touch to the
battery again. If you hear the solenoid snap when it toggles, replace
the interface module.
Reverse the battery again. If the solenoid does not snap, replace the
solenoid block.
5.
Frequent pilot outage
problem.
a. Pilot fl ame may be too high or low,
or blowing (high), causing pilot
safety to drop out.
Clean and adjust the pilot fl ame for maximum fl ame impingement on
thermocouple. Follow lighting instructions carefully.
6.
The pilot and main
burner extinguish while in
operation.
a. No LP in tank.
Check the LP (propane) tank. Refi ll the fuel tank.
b. Inner vent pipe leaking exhaust
gases back into the system.
Check for gas leaks.
c. Horizontal vent improperly pitched.
The horizontal vent cap should slope down only enough to prevent
any water from entering the unit. The maximum downwards slope is
1/4 in.
d. Glass too loose and air tight packet
leaks in corners after usage.
Tighten the corner.
e. Bad thermopile or thermocouple.
Replace if necessary.
f. Improper vent cap installation.
Check for proper installation and freedom from debris or blockage.
7.
Glass soots.
a. Flame impingement.
Adjust the log set so that the fl ame does not excessively impinge on it.
b. Improper venturi setting.
Adjust the air shutter at the base of the burner.
c. Debris around venturi.
Inspect the opening at the base of the burner. NO MATERIAL
SHOULD BE PLACED IN THIS OPENING.
8.
Flame burns blue and lifts
off burner.
a. Insuffi cient oxygen being supplied.
Ensure that the vent cap is installed properly and free of debris, and
that the vent system joints are tight and have no leaks.
Ensure that no debris has been placed at the base of, or in the area of
the air holes in the center of the base pan beneath the burner.
Ensure that the glass is tightened properly on the unit, particularly on
top corners.