Heat & Glo SL-550TR-E Owner's Manual page 18

Troubleshooting (continued)
Symptom
3. (Continued)
4. Frequent pilot outage
problem.
5. The pilot and main
burner extinguish
while in operation.
6. Glass soots.
7. Flame burns blue
and lifts off burner.
18 Heat & Glo • SL-550/750TR-E, SL-550/750/950TR-IPI-E Owner's Manual • 2118-911 Rev. B • 2/16
Possible Cause
C. Valve.
D. Plugged burner orifi ce.
E. Wall switch or wires.
A. Pilot fl ame may be too high or too low, or blow-
ing out (high pressure), causing pilot safety to
drop out.
A. No LP in tank.
B. Improper gas inlet pressure.
C. Inner vent pipe leaking exhaust gases back
into the system.
D. Glass installed improperly.
E. Thermopile or thermocouple.
F. Improper vent cap installation.
A. Flame impingement.
B. Improper air shutter setting.
C. Debris around air shutter.
A. Insuffi cient oxygen being supplied.
Corrective Action
Turn the valve knob to the ON position. Place the ON/
OFF switch in the ON position. Take a reading with a
millivolt meter at the thermopile terminals. The millivolt
meter should read greater than 125mV. If the reading
is acceptable, and if the burner does not come on, re-
place the gas valve.
Check the burner orifi ce for stoppage. Remove stop-
page.
Check the wall switch and wires for proper connec-
tions. Place the jumper wires across the terminals at
the wall switch. If the burner comes on, replace the
wall switch. If the wall switch is OK, place the jumper
wires across the wall switch wires at the gas valve. If
the burner comes on, the wires are faulty or connec-
tions are bad.
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.
Natural gas should be 5-10 in. w.c. LP should be 11-13
in. w.c. Verify pressure with manometer.
Check venting system for damage. Replace/repair im-
properly assembled pipe sections.
Check to ensure glass is installed properly. Replace
fi xed 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 ad-
justable shutter, it may be necessary to increase shut-
ter 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.