111347-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
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TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner does not light after ODS/pilot is lit
Delayed ignition of one or both burners
Burner backfiring during combustion
Slight smoke or odor during initial opera-
tion
Heater produces a whistling noise when
burners are lit
White powder residue forming within burner
box or on adjacent walls or furniture
Moisture/condensation noticed on windows
Dark residue on logs inside of their fireplace
Note:
After removing all causes of residue
deposits, completely clean fireplace and ap-
pliance off residue before reusing appliance
REMEDY
1. Contact local natural or propane/LP gas
company
2. Clean burner(s) (see Cleaning and Main-
tenance, pages 18 and 19) or replace
burner orifice(s)
1. Contact local natural or propane/LP gas
company
2. Clean burner(s) (see Cleaning and Main-
tenance, pages 18 and 19) or replace
burner orifice(s)
1. Clean burner (see Cleaning and Main-
tenance, pages 18 and 19) 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 18 and 19)
2. Replace gas control
3. Problem will stop after a few hours of
operation
1. Turn control knob to LO position and
let warm up for a minute
2. Operate burners until air is removed
from line. Have gas line checked by lo-
cal natural or propane/LP gas company
3. Observe minimum installation clear-
ances (see pages 8 through 10)
4. Clean burners (see Cleaning and Main-
tenance, pages 18 and 19) or replace
burner orifice
1. Turn heater off when using furniture
polish, wax, carpet cleaners, or similar
products
1. Refer to Air for Combustion and Venti-
lation requirements (page 4)
1. Properly locate logs (see Installing Logs,
pages 13 and 14)
2. Eliminate source of drafts around heater
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
4. Remove blockage
POSSIBLE CAUSE
1. Inlet gas pressure is too low
2. Burner orifice(s) clogged
1. Manifold pressure is too low
2. Burner orifice(s) 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. Turning control knob to HI position
when burners are cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner
orifice(s)
1. When heated, vapors from furniture pol-
ish, wax, carpet cleaners, etc. may turn
into white powder residue
1. Not enough combustion/ventilation air
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
TROUBLESHOOTING
