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40
Standing Pilot Troubleshooting
Symptom
1. After repeated
triggering of the red
or black piezo
button, the spark
ignitor will not light
the pilot.
2. The pilot will not stay
lit after carefully
following the lighting
instructions.
3. The pilot is burning,
there is no gas
burner, the valve
knob is in the ON
position, and the
ON/OFF switch is in
the ON position.
Possible Cause
a. Defective ignitor
b. Defective pilot or
misaligned
electrode (spark at
electrode)
c. No gas or low gas
pressure
d. No LP in the tank
a. Defective
thermocouple
b. Defective valve
a. ON/OFF switch or
wires defective
b. Thermopile may
not be generating
sufficient
millivoltage
Corrective Action
Check the spark at the electrode and
pilot. If no spark and electrode wire
is
properly connected, replace the ignitor.
Using a match, light the pilot. If the
pilot lights, turn off the pilot and
trigger the red or black piezo button
again. If the pilot lights, an improper
gas/air mixture caused the bad
lighting and a longer purge period is
recommended. If the pilot will not
light, ensure that the gap at the
electrode and pilot is 0.3 cm to have
a strong spark. If the gap is OK,
replace the pilot.
Check the remote shut-off valves
from the fireplace. Usually, there is a
valve near the gas main. There can
be more than one (1) valve between
the fireplace and the main.
Check the LP (propane) tank. You
may be out of fuel.
Check that the pilot flame impinges
on the thermocouple. Clean and/or
adjust the pilot for maximum flame
impingement.
Ensure that the thermocouple
connection at the gas valve is fully
inserted and tight (hand tighten plus
1/4 turn).
Disconnect the thermocouple from
the valve, place one millivolt meter
lead wire on the tip of the
thermocouple and the other meter
lead wire on the thermocouple
copper lead. Start the pilot and hold
the valve knob in. If the millivolt
reading is less than 15mV, replace
the thermocouple.
If thermocouple is producing more
than 15 millivolts, replace faulty valve.
Check the ON/OFF switch and wires
for proper connections. Place the
jumper wires across the terminals
at the switch. If the burner comes on,
replace the defective switch. If the
switch is OK, place the jumper wires
across the switch wires at the gas
valve. If the burner comes on, the
wires are faulty or connections are
bad.
If the pilot flame is not close enough
physically to the thermopile, adjust
the pilot flame.
Be sure the wire connections from
the thermopile at the gas valve
terminals are tight and that the
thermopile is fully inserted into the
pilot bracket.
5
Trouble-
shooting
With proper
installation,
operation, and
maintenance your
gas fireplace will
provide years of
trouble-free
service. If you do
experience a
problem, this
troubleshooting
guide will assist a
qualified service
person in the
diagnosis of a
problem and the
corrective action to
be taken. This
troubleshooting
guide can only be
used by a
qualified service
technician.