www.desatech.com
115580-01A
19
OBSERVED PROBLEM
Burner does not light after ODS/
pilot is lit
Delayed ignition burner
Burner backfiring during com-
bustion
Slight smoke or odor during initial
operation
Moisture/condensation noticed
on windows
Heater produces a whistling noise
when burner is lit
Dark residue on logs or inside
of fireplace
REMEDY
1. Clean burner (see
Cleaning
and Maintenance,
page 17)
or replace burner orifice
2. Contact local natural or pro-
pane/LP gas company
1. Contact local natural or pro-
pane/LP gas company
2. Clean burner (see
Cleaning
and Maintenance,
page 17)
or replace burner orifice
1. Clean burner (see
Cleaning
and Maintenance,
page 17)
or replace burner orifice
2. Replace damaged burner
3. Replace gas control
1. Check burner for dirt and
debris. If found, clean burner
(see
Cleaning and Mainte-
nance,
page 17)
2. Replace gas control
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 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 7)
4. Clean burner (see
Cleaning
and Maintenance,
page 17)
or replace burner orifice
1. Properly locate logs (see
In-
stalling Gas Log Heater Into
Stove,
page 11)
2. Eliminate source of drafts
around heater
3. Clean out air holes at burner
inlet. Periodically repeat as
needed
4. Remove blockage
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
position when burner is cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
1. Improper log placement
2. Drafts or other air currents
affecting flame pattern
3. Air holes at burner inlet
blocked
4. Burner flame holes blocked
