Desa CGD3018PT/NT - Manual (Page 27)

www.desatech.com 111160-01C 27
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Burner orifice clogged
2. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice clogged
1. Burner orifice is clogged or
damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing
processes and logs curing
1. Not enough combustion/ven-
tilation air
1. Turning control knob to HI or
position 5 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 fur-
niture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Metal expanding while heating
or contracting while cooling
REMEDY
1. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
or replace burner orifice
2. Contact local propane/LP or
natural gas company
1. Contact local propane/LP or
natural gas company
2. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
or replace burner orifice
1. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
or replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner for dirt and debris.
If found, clean burner (see
Cleaning and Maintenance,
pages 24 and 25)
2. Replace gas regulator
3. Problem will stop after a few
hours of operation
1. Refer to Air for Combustion
and Ventilation requirements
(page 5)
1. Turn control knob to LO or posi-
tion 1 and let warm up for a minute
2. Operate burner until air is re-
moved from line. Have gas
line checked by local propane/
LP or natural gas company
3. Observe minimum installa-
tion clearances (see pages 9
through 12)
4. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
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, con-
tact qualified service person
OBSERVED PROBLEM
Burner does light after ODS/
pilot is lit
Delayed ignition of burner
Burner backfiring during
combustion
Slight smoke or odor during ini-
tial operation
Moisture/condensation noticed
on windows
Heater produces a whistling
noise when burner is lit
White powder residue forming
within burner box or on adja-
cent walls or furniture
Heater produces a clicking/tick-
ing noise just after burner is lit or
shut off