www.fmiproducts.com
125324-01A
18
TROUBLESHOOTING
Continued
OBSERvED PROBLEM
Yellow flame during burner
combustion
Slight smoke or odor during
initial operation
Heater produces a clicking/
ticking noise just after burner
is lit or shut off
White powder residue forming
within burner box or on adja-
cent walls or furniture
Heater produces a whistling
noise when burner is lit
REMEDY
1. Clean burner (see
Cleaning
and Maintenance
, page 15)
or replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
1. Problem will stop after a few
hours of operation
1. This is normal with most heat-
ers. If noise is excessive, con-
tact qualified service person
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
1. Turn control knob to 1 posi-
tion and let warm up for a
minute.
2. Operate burner until air is
removed from line. Have gas
line checked by local natural
or propane/LP gas company
3. Observe minimum installa-
tion clearances (see Figure
4, page 8)
4. Clean burner (see
Cleaning
and Maintenance
, page 15)
or replace burner orifice
POSSIBLE CAUSE
1. Not enough air
2. Gas Regulator defective
3. Clogged or dirty burner
1. Residues from manufactur-
ing processes
1. Metal expanding while
heating or contracting while
cooling
1. When heated, vapors from
furniture polish, wax, carpet
cleaner, etc., may turn into
white powder residue
1. Turning control knob to po-
sition when burner is cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice