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Troubleshooting
NOTE: When troubleshooting the gas control system, be sure the external gas shut off valve, located at the gas sup-
ply inlet is in the "ON" position.
IMPORTANT: Call your gas supplier or plumber for additional help with any gas control problem. Valve system
troubleshooting should only be accomplished by a qualified service technician.
SYMPTOM
Thin black coating (soot)
forms on the viewing
glass, logs, or firebox
Humming or whistling
coming from insert.
A change in flame appear-
ance or burner operation.
Spark igniter will not light
pilot after repeated tries.
Pilot will not stay lit after
carefully following lighting
instructions.
Pilot burning, but no
flame on main burner with
valve knob "ON", rocker
switch and thermostat
"ON".
0
PROBABLE CAUSE
1) Improper log or
1) See Log Set Installation on Pages 9 & 10. If there is soot in one specific location, the
ember placement
rockwool below this location needs to be adjusted. This can be done by pulling embers
) Improper air shutter
forward slightly. If the flames have soot tails, the shutter will need to be opened.
setting
) If sooting continues open air shutter (see Air Shutter Adjustment on Page 12)
) Not enough combus-
) Check for debris obstructing air flow in valve compartment under insert or in front of
tion air
lower venting.
4) Incorrect gas pres-
4) Have gas supplier check for correct gas pressure (7" W.C. natural gas: 11" W.C. pro-
sure
pane gas)
1) Normal operating
1) See Quiet Operation on Page 15. The noise may be reduced by slightly turning down
noise
the flame. Turning the flame down will reduce the heat output of the insert.
) Obstructed orifice
) If noise is excessive or is "whistling" have your gas supplier check the regulator and
opening
orifices and replace if necessary.
) Defective regulator
) If noise is excessive or is "whistling" have your gas supplier check the regulator and
orifices and replace if necessary.
1) A change in gas
1) Have your gas supplier check for correct gas pressure (7" W.C. / po. C.E. [1.74 kPa]
pressure
natural gas; 11" W.C. / po. C.E. [2.74 kPa] LP gas). NOTE: NEVER BLOCK OR OBSTRUCT
) Improper ember
AIR INTAKE OR OUTLET VENTS.
placement
) See Log Set Installation Instructions.
1) No gas supplied to
1) Check gas supply. To purge, hold in gas cock on valve for 1-2 minutes and try again.
unit or air in line
) Check for spark at electrode and pilot, if no spark and electrode wire is properly con-
) Defective igniter (no
nected, replace igniter and igniter wire.
spark at electrode)
) Using a match, light pilot. If pilot lights, turn off pilot and trigger the igniter again.
) Defective or mis-
If pilot lights, an intermittent gas/air supply may be the problem, if longer purge will
aligned electrode at pilot
not light - check gap between electrode and pilot - should be 1/8 inch (3 mm) to have a
(spark at electrode)
strong spark. If OK, replace pilot.
1) Vent Safety Snap
1) Snap switch activated, have venting system inspected for blockage, down draft or
Switch shut down.
bad snap switch.
) Improper Flame
) Check pilot flame adjustment (see "Maintenance" section).
impingement
) Check inlet pressure and adjust pilot if necessary.
) Low gas inlet pres-
4) Be sure wire connections from thermopile are tight at gas valve terminals and at vent
sure
safety snap switch.
4) Defective thermopile
5a) Either rocker switch or thermostat wires may be grounded. Remove wires from valve
5) Bad connection
terminals. If pilot stays lit, trace switch wiring for a ground. May be grounded to insert or
6)Defective automatic
gas supply.
valve operator
5b) Check open circuit millivolt output of thermopile. Reading should be greater than
325mV. Also check thermopile wire for kinks that can cause loss of mV. Replace faulty
thermopile if wire is okay and reading is less than 325mV.
6)Turn valve knob to "ON" and thermostat (if installed) to 90º. Millivolt meter should read
greater than 100 mV. If reading is OK and burner does not turn on, replace gas valve
(qualified service technician only).
1) Pilot has gone out
1) See Lighting Instructions.
) Rocker switch,
) Disconnect rocker switch and thermostat wires at terminals 1 and 3 on valve. Jumper
thermostat, or wires
across from 1 to 3 with pilot lit. If burner comes on either rocker switch, thermostat, or
defective
wiring is not functioning. If not, jumper wires across switch wires at gas valve. If burner
) Thermopile may not
comes on, wires are faulty or connections are bad.
be generating sufficient
) Check thermopile with millivolt meter (see Maintenance and Servicing), recheck
millivolts
symptom #2.
4) Plugged burner
4) Check burner for stoppage and remove.
orifice.
CORRECTIVE ACTION
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