Comfort Glow CSNPT Owner's Operation And Installation Manual page 15

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
For more information, visit www.desatech.com
For more information, visit www.desatech.com
111487-01A
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/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. may turn
into white powder residue
TROUBLESHOOTING
REMEDY
1. Clean burner (see Cleaning and Main-
tenance, page 13) or replace burner
orifice
2. Contact local natural or propane/LP gas
company
1. Contact local natural or propane/LP gas
company
2. Clean burner (see Cleaning and Main-
tenance, 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
Maintenance, page 13)
2. Replace gas control
3. Problem will stop after a few hours of
operation
1. Refer to Air for Combustion and Venti-
lation 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
natural or propane/LP gas company
3. Observe minimum installation clear-
ances (see page 7)
4. Clean burner (see Cleaning and Main-
tenance, page 13) or replace burner
orifice
1. Properly locate logs (see Installing Log
Set, page 11)
2. Eliminate source of drafts around heater
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
4. Remove blockage
1. Turn heater off when using furniture
polish, wax, carpet cleaners, or similar
products
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