Desa CGEFP33PRB, CGEFP33NRB, EFP33PRB, EFP33NRB Owner's Operation And Installation Manual page 31

OBSERVED PROBLEM
Slight smoke or odor during initial
operation
Moisture/condensation noticed
on windows
Heater produces a whistling noise
when burner is lit
When ignitor button is pressed,
there is no spark at ODS/pilot
(manual ignition mode)
When ignitor button is pressed,
there is spark at ODS/pilot but no
ignition (manual ignition mode)
111245-01B
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
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
position when burner is cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
1. Ignitor electrode not con-
nected to ignitor cable
2. Ignitor cable pinched or wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned
wrong
1. Gas supply turned off or equip-
ment shutoff valve closed
2. Control knob not in PILOT
position
3. Air in gas lines when in-
stalled
4. Depleted gas supply (pro-
pane/LP only)
5. ODS/pilot is clogged
6. Gas regulator setting is not
correct
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REMEDY
1. Check burner for dirt and
debris. If found, clean burner
(see Cleaning and Mainte-
nance, page 29)
2. Replace regulator
3. Problem will stop after a few
hours of operation
1. Refer to Air for Combustion
and Ventilation requirements
(page 6)
1. Turn control knob to LO
position 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 page 9)
4. Clean burner (see Cleaning
and Maintenance, page 29) or
replace burner orifice
1. Reconnect ignitor cable
2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
3. Tighten nut holding piezo ignitor
to base panel of log set. Nut is
located behind base panel
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace pilot assembly
7. Replace pilot assembly
1. Turn on gas supply or open
equipment shutoff valve
2. Turn control knob to PILOT
position full counterclockwise
3. Continue holding control knob
in full counterclockwise posi-
tion. Repeat igniting operation
until air is removed
4. Contact local propane/LP gas
company
5. Clean ODS/pilot (see Cleaning
and Maintenance, page 29) or
replace ODS/pilot assembly
6. Replace gas regulator
31