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105683
OWNER’S MANUAL
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner does not light after ODS/pilot is lit
Delayed ignition burner
Burner backfiring during combustion
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
White powder residue forming within burner
box or on adjacent walls or furniture
REMEDY
1. Clean burner (see Cleaning and Mainte-
nance, page 13) or replace burner orifice
2. Contact local natural gas company
3. Replace burner orifice
4. Reconnect leads (see wiring diagram)
5. Replace battery in transmitter and receiver
1. Contact local natural gas company
2. Clean burner (see Cleaning and Mainte-
nance, page 13) or replace burner orifice
1. Clean burner (see Cleaning and Mainte-
nance, page 13) 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 13)
2. Replace gas control
3. Problem will stop after a few hours of
operation
1. Refer to Air for Combustion and Ventila-
tion requirements (page 4)
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 natu-
ral gas company
3. Observe minimum installation clearances
(see pages 7 through 9)
4. Clean burner (see Cleaning and Mainte-
nance, page 13) or replace burner orifice
1. Properly locate logs (see Installing Logs,
page 10)
2. Eliminate source of drafts around heater
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
4. Remove blockage or replace burner
1. Turn heater off when using furniture pol-
ish, wax, carpet cleaners, or similar
products
POSSIBLE CAUSE
1. Burner orifice clogged
2. Inlet gas pressure is too low
3. Burner orifice diameter is too small
4. Thermopile leads disconnected or im-
properly connected
5. Burners will not come on in remote position
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/ventilation 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
1. When heated, vapors from furniture pol-
ish, wax, carpet cleaners, etc. turn into
white powder residue
www.desatech.com
Continued
