Troubleshooting - Napoleon PTH31GT User Manual

10
Problem
Low heat / Low flame when
valve turned to high.
Burners burn with yellow
flame, accompanied by the
smell of gas.
Burner will not light with the
igniter, but will light with a
match.
Humming regulator.
Burner output on "high"
setting is too low. (Rumbling
noise and fluttering blue
flame at burner surface.)
Pilot will not light.
(if equipped)
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Troubleshooting

Possible Causes
For propane - improper lighting procedure.
For natural gas - undersized supply line.
Possible spider web or other debris.
Dead battery / or installed incorrectly.
Loose electrode wire or switch terminal wires.
Improper gap at electrode tip.
Normal occurrence on hot days.
Lack of gas.
Supply hose is pinched.
Dirty or clogged orifice.
Spider webs or other matter in venturi tube.
Propane regulator in "low flow" state.
Lack of gas.
Obstruction in pilot orifice.
Dirty pilot electrode.
Solution
Ensure lighting procedure is followed
carefully. The valve must be in the off
position when the tank valve is turned on.
Turn tank on slowly to allow pressure to
equalize. See lighting instructions.
Pipe must be sized according to
installation code.
Thoroughly clean burner venturi. See
general maintenance instructions.
Replace with heavy duty battery.
Check that electrode wire is firmly pushed
onto the terminal on the back of the
igniter. Check that the lead wires from
the module to the ignition switch (if
equipped) are firmly pushed onto their
respective terminals.
The gap can be adjusted by bending the
tip in or out. Until a spark is achieved.
This is not a defect. It is caused by
internal vibrations in the regulator and
does not affect the performance or safety
of the gas heater. Humming regulators
will not be replaced.
Check gas level in propane cylinder.
Reposition supply hose as necessary.
Clean burner orifice.
Clean out venturi tube.
Ensure lighting procedure is followed
carefully. All valves must be in the off
position when the tank valve is turned on.
Turn tank on slowly to allow pressure to
equalize. See lighting instructions.
After turning pilot knob to high, wait
approximately 20-30 seconds for air to
purge the gas supply line while pressing
igniter.
Clean pilot orifice.
Clean pilot electrode.