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15
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner(s)does not light after
ODS/pilot is lit.
Delayed ignition of burner(s).
Burner backfiring during combustion.
Yellow flame during burner
combustion.
Slight smoke or odor during
initial operation.
Heater produces a whistling noise
when burner is lit.
Heater produces a clicking/ticking
noise just after burner is lit or
shut off.
White powder residue forming within
burner box or on adjacent
walls or furniture.
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. Not enough air.
2. Gas regulator defective.
3. Inlet gas pressure is too low.
1. Residues from manufacturing
processes.
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. Metal expanding while heating or
contracting while cooling.
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. turn into white
powder residue.
REMEDY
1. Clean burner orifice (see Cleaning
and Maintenance, page 13) o
r
replace burner orifice.
2. Replace burner orifice.
3. Contact local Propane/LP gas company
.
1. Contact local Propane/LP gas company.
2. Clean burner (see Cleaning and
Maintenance, page 13) or replace
burner orifice.
1. Clean burner orifice (see Cleaning
and Maintenance, page 13) o
r
replace.
2. Replace burner.
3. Replace gas regulator.
1. Check burner for dirt and debris. I
f
found, clean burner (see Cleaning
and Maintenance, Page 13).
2. Replace gas regulator.
3. Contact local propane/LP gas company
.
1. Problem will stop after a few hours
of operation.
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 Propane/LP gas company
.
3. Observe minimum installation
clearances (Figure 4, p7).
4. Clean burner (see Cleaning and
maintenance, Page13) or replace
burner orifice.
1. This is common with mos
t
heaters. If noise is excessive,
contact qualified service person
1. Turn heater off when using
furniture polish, wax, carpet
cleaner or similar products.