Heatilator Gas Fireplace GDCL4136I Owner's Manual page 65

Troubleshooting (continued)
Symptom
3. (Continued) c. Valve.
d. Plugged burner orifi ce.
e. Wall switch or wires.
4. Frequent pilot outage a. Pilot fl ame may be too high or too low, or blow-
problem.
5. The pilot and main a. No LP in tank.
burner extinguish
b. Improper gas inlet pressure.
while in operation.
c. Inner vent pipe leaking exhaust gases back into
d. Glass installed improperly.
e. Thermopile or thermocouple.
f. Improper vent cap installation.
6. Glass soots. a. Flame impingement.
b. Improper air shutter setting.
c. Debris around air shutter.
7. Flame burns blue a. Insuffi cient oxygen being supplied.
and lifts off burner.
Heatilator • GDST4336I, GDFL4136I, GDCR4136I, GDCL4136I • 2129-900 Rev. F • 11/08
Possible Cause
ing out (high pressure), causing pilot safety to
drop out.
the system.
Corrective Action
Turn the valve knob to the ON position. Place the
ON/OFF switch in the ON position. Check the millivolt
meter a the thermopile terminals. The millivolt meter
should read greater than 125mV. If the reading is ac-
ceptable, and if the burner does not come on, replace
the gas valve.
Check the burner orifi ce for stoppage. Remove stop-
page.
Follow the corrective action in Symptom and Possible
Cause 1.a above. Check the switch and wiring.
Clean thermocouple and adjust the pilot fl ame for
proper fl ame impingement. Follow lighting instructions
carefully.
Check the LP (propane) tank. Refi ll the fuel tank.
Verify with manometer. NG should read 5-14 in. w.c.
LP should read 10-14 in. w.c.
Check venting system for damage. Replace/repair
improperly assembled pipe sections.
Check to ensure glass is installed properly. Replace
glass panel assembly.
Replace pilot if necessary.
Check for proper installation and freedom from debris
or blockage.
Adjust the log set so that the fl ame does not exces-
sively impinge on it. Refer to log instructions.
Refer to manual for shutter set points. Ensure that
set point is correct for appliance/gas type. If unit has
adjustable shutter, it may be necessary to increase
shutter opening.
Inspect the opening at the base of the burner. NO MA-
TERIAL SHOULD BE PLACED IN THIS OPENING.
Ensure that the vent cap is installed properly and free
of debris. Ensure 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.
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