www.desatech.com
123551-01D
24
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Yellow flame in front/middle
burner during burner com-
bustion
Slight smoke or odor during
initial operation
Heater produces a whistling
noise when burners are lit
White powder residue forming
within burner box or on adja-
cent walls or furniture
Moisture/condensation no-
ticed on windows
Heater produces a clicking/
ticking noise just after burners
are lit or shut off
REMEDY
1. Check burner(s) for dirt
and debris. If found, clean
burner(s) (see
Cleaning and
Maintenance
, page 20)
2. Replace gas regulator
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 burners until air is
removed from line. Have gas
line checked by local natural
or propane/LP gas company
3. Observe minimum installation
clearances (see page 8)
4. Clean burners (see
Clean-
ing and Maintenance
,
page 20)
1. Turn heater off when us-
ing furniture polish, wax,
carpet cleaners or similar
products
1. Refer to
Air for Combustion
and Ventilation
require
-
ments (page 6)
1. This is normal with most
heaters. If noise is exces-
sive, contact qualified ser
-
vice person
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
1. Residues from manufac-
turing processes and logs
curing
1. Turning control knob to HI
position when burners are
cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice(s)
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Not enough combustion/
ventilation air
1. Metal expanding while
heating or contracting while
cooling
