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OBSERVED PROBLEM
Burner(s)does not light after
ODS/pilot is lit.
Delayed ignition of burner(s).
Burner backfiring during
combustion.
Slight smoke or odor during
initial operation.
Heater produces a whis-
tling noise when burner is
lit.
White powder residue
forming within burner box or
on adjacent walls or
furniture.
Heater produces a clicking/
ticking noise just after
burner is lit or shut off.
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1.
Burner orifice is clogged.
2.
Burner orifice diameter is too
small.
3.
Inlet gas pressure is too low.
1.
Manifold pressure is too low.
2.
Burner orifice is clogged.
1.
Burner orifice is clogged or
damaged.
2.
Burner damaged.
3.
Gas regulator defective.
1. Residues from manufactory.
2.
Not enough combustion/
ventilation air.
1.
Turning control knob to HI
position when burner is cold.
2.
Air in gas line.
3.
Air passageways on heater
blocked.
4.
Dirty or partially clogged burner
orifice.
1.
When heated, vapors from furni-
ture polish, wax, carpet cleaners,
etc. turn into white powder residue.
1. Metal expanding while heating or
contracting while cooling.
22
REMEDY
1.
Clean burner orifice (see Cleaning
and Maintenance pages 19 and
20) or replace burner orifice.
2.
Replace burner orifice.
3.
Contact local natural or propane/
LP gas company.
1.
Contact local natural or propane/
LP gas company.
2.
Clean burner (see Cleaning and
Maintenance pages 19 and 20) or
replace burner orifice.
1.
Clean burner orifice (see Clean-
ing and Maintenance pages 19
and 20) or replace Burner orifice.
2.
Replace burner.
3.
Replace gas regulator.
1.
Problem will stop after a few hours
2.
Refer to air for combustion and
ventilation requirements.
1. Turn control knob to LO position
and let warm up for a minute.
2. Operate burner until air is re
moved from line. Have gas line
checked by local natural or pro
pane/LP gas company.
3. Observe minimum installation
clearances.
4. Clean burner (see cleaning and
maintenance pages 19 and 20) or
replace burner orifice.
1.
Turn heater off when using furni-
ture polish, wax carpet cleaner or
similar products
1. This is common with most heaters.
if noise is excessive, contact
qualified service person.
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