Desa Tech CGD3018P Manuel D’Utilisation
27
102991
TROUBLE-
SHOOTING
Continued
OBSERVED
PROBLEM
PROBLEM
Burner does light
after ODS/pilot is lit
after ODS/pilot is lit
Delayed ignition of
burner
burner
Burner backfiring
during combustion
during combustion
Slight smoke or
odor during initial
operation
odor during initial
operation
Moisture/condensa-
tion noticed on
windows
tion noticed on
windows
Heater produces a
whistling noise
when burner is lit
whistling noise
when burner is lit
REMEDY
1. Clean burner (see
Cleaning and Mainte-
nance, page 25) or
replace burner orifice
nance, page 25) or
replace burner orifice
2. Contact local propane
gas company
3. Replace burner orifice
1. Contact local natural gas
company
2. Clean burner (see
Cleaning and Mainte-
nance, page 25) or
replace burner orifice
nance, page 25) or
replace burner orifice
1. Clean burner (see
Cleaning and Mainte-
nance, page 25) or
replace burner orifice
nance, page 25) or
replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
3. Replace gas regulator
1. Check burner for dirt
and debris. If found,
clean burner (see
Cleaning and Mainte-
nance, page 25)
clean burner (see
Cleaning and Mainte-
nance, page 25)
2. Replace gas regulator
3. Problem will stop after a
3. Problem will stop after a
few hours of operation
1. Refer to Air for Com-
bustion and Ventilation
requirements (page 5)
requirements (page 5)
1. Turn control knob to LO
position and let warm up
for a minute
for a minute
2. Operate burner until air
is removed from line.
Have gas line checked
by local natural gas
company
Have gas line checked
by local natural gas
company
3. Observe minimum
installation clearances
(see pages 9-12)
(see pages 9-12)
4. Clean burner (see
Cleaning and Maintenance,
page 25) or replace
burner orifice
page 25) or replace
burner orifice
POSSIBLE
CAUSE
CAUSE
1. Burner orifice clogged
2. Inlet gas pressure is
too low
3. Burner orifice diameter
is too small
1. Manifold pressure is
too low
2. Burner orifice clogged
1. Burner orifice is
clogged or damaged
2. Damaged burner
3. Gas regulator defective
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
3. Residues from manu-
3. Residues from manu-
facturing processes
and logs curing
and logs curing
1. Not enough combus-
tion/ventilation air
1. Turning control knob
to HI position when
burner is cold
burner is cold
2. Air in gas line
3. Air passageways on
heater blocked
4. Dirty or partially
clogged burner orifice