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124387-01D
32
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner does not light after pilot
is lit or cycles during operation.
Delayed ignition at burner
Burner backfiring during com
-
bustion
Slight smoke or odor during
initial operation
Heat produces a whistling
noise when burner is lit
REMEDY
1. Clean burner (see
Cleaning
and Maintenance
, page 28)
or replace burner orifice
2. Contact local propane/LP or
natural gas company
3. Reconnect leads
4. Replace thermopile
5. Have the vent system in-
spected, including the ter-
mination cap. Remove any
restriction or obstruction
1. Contact local propane/LP or
natural gas company
2. Clean burner (see
Cleaning
and Maintenance
, page 28)
or replace burner orifice
1. Clean burner (see
Cleaning
and Maintenance
, page 28)
or replace burner orifice
2. Replace damaged burner
3. Replace gas control
1. Problem will stop after a few
hours of operation
1. Turn gas control knob to LO
position and let warm up for
a minute
2. Operate burner until air is
removed from line. Have
gas line checked by pro
pane/LP or natural gas
company
3. Clean burner (see
Cleaning
and Maintenance
, page 28)
or replace burner orifice
POSSIBLE CAUSE
1. Burner orifice clogged
2. Inlet gas pressure is too low
3. Thermopile leads discon-
nected or improperly con-
nected
4. Thermopile is defective
5. Improper venting or exces-
sive blockage
1. Manifold pressure too low
2. Burner porting or orifice
clogged
1. Burner orifice is clogged or
damaged
2. Damaged burner
3. Gas regulator defective
1. Residues from manufac-
turing processes and logs
curing
1. Turning gas control knob to
HI position when burner is
cold
2. Air in gas line
3. Dirty or partially clogged
burner orifice