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OBSERVED POSSIBLE
PROBLEM CAUSE REMEDY
TROUBLE-
SHOOTING
Continued
Burner does light
after ODS/pilot is lit
1. Burner orifice clogged
2. Inlet gas pressure is
too low
3. Burner orifice diameter
is too small
1. Clean burner (see
Cleaning and Mainte-
nance, page 25) or
replace burner orifice
2. Contact local propane
gas company
3. Replace burner orifice
Delayed ignition of
bumer
1. Manifold pressure is
too low
2. Burner orifice clogged
1. Contact local natural gas
company
2. Clean burner (see
Cleaning and Mainte-
nance, page 25) or
replace burner orifice
Bumer backfiring
during combustion
1. Burner orifice is
clogged or damaged
2. Damaged burner
3. Gas regulator defective
1. Clean burner (see
Cleaning and Mainte-
nance, page 25) or
replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
Slight smoke or
odor during initial
operation
1. Not enough air
2. Gas regulator defective
3. Residues from manu-
facturing processes
and logs curing
1. Check burner for dirt
and debris. If found,
clean burner (see
Cleaning and Mainte-
nance, page 25)
2. Replace gas regulator
3. Problem will stop after a
few hours of operation
Moisture!condensa- 1. Not enough combus- 1. Refer to Air for Com-
tion noticed on tion/ventilation air bustion and Ventilation
windows requirements (page 5)
Heater produces a
whistling noise
when burner is lit
I.Turningcontrolknob
toHI positionwhen
burneriscold
2. Air in gas line
3. Air passageways on
heater blocked
4. Dirty or partially
clogged burner orifice
1. Turn 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 local natural gas
company
3. Observe minimum
installation clearances
(see pages 9-12)
4. Clean burner (see
Cleaningand Maintenance,
page 25) or replace
burner orifice