Hearth and Home Technologies CFL-18NG-C Owner's Manual page 14

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.
14 Hearth & Home Technologies • CFL-18/24/30-C, CFL-24-IPI, ST-CFL-24-B • 526-910 Rev. L • 11/14
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.