Desa BG30PT - Manual (Page 22)

www.desatech.com 114683-01B 22
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Yellow flame during burner
combustion
Slight smoke or odor during initial
operation
Heater produces a whistling noise
when burner is lit
White powder residue forming
within burner box or on adjacent
walls or furniture
Heater produces a clicking/tick-
ing noise just after burner is lit
or shut off
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Clogged or dirty burner
1. Residues from manufacturing
processes
1. Turning control knob to 5
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
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Metal expanding while heating
or contracting while cooling
REMEDY
1. Check burner for dirt and
debris. If found, clean burner
(see Cleaning and Mainte-
nance, page 19)
2. Replace gas regulator
3. Clean burner (see Cleaning
and Maintenance, page 19)
1. Problem will stop after a few
hours of operation
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 installation
clearances (see Figure 4, page 8)
4. Clean burner (see Cleaning
and Maintenance, page 19)
or replace burner orifice
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
1. This is common with most heat-
ers. If noise is excessive, contact
qualified service person