Desa GWP6 - Manual (Page 18)

www.desatech.com 117001-01A 18
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Not enough air
2. Inlet gas pressure is too low
3. Gas regulator defective
1. Residues from manufacturing
processes
1. Turning control knob to high-
est 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
cleaner, etc., may turn into
white powder residue
REMEDY
1. Check burner for dirt and de-
bris. If found, clean burner (see
Cleaning and Maintenance,
page 15)
2. Contact local natural or pro-
pane/LP gas company
3. Replace gas regulator
1. Problem will stop after a few
hours of operation
1. Turn control knob to lowest
position and let warm up for a
minute
2. Operate burner until air is
removed from line. Have gas
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 15) or
replace burner orifice
1. This is common with most heat-
ers. If noise is excessive, contact
qualified service person
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
OBSERVED PROBLEM
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/tick-
ing noise just after burner is lit
or shut off
White powder residue forming
within burner box or on adjacent
walls or furniture