Desa FLAME-MAX FLAME-MAX VintageOak Operation And Installation Manual page 26

TROUBLESHOOTING
26
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 operation
Heater produces a whistling noise when burn-
ers 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 de-
posits, completely clean fireplace and appliance
off residue before reusing appliance
For more information, visit www.desatech.com
For more information, visit www.desatech.com
POSSIBLE CAUSE
1. Inlet gas pressure is too low
2. Burner orifice(s) clogged
3. Thermopile leads disconnected or improperly
connected (Remote-Ready Models Only)
4. Burners will not come on in remote position
(Remote-Ready Models Only)
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 polish,
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
REMEDY
1. Contact local natural or propane/LP gas
company
2. Clean burner(s) (see Cleaning and Mainte-
nance, page 24) or replace burner orifice(s)
3. Reconnect leads (see Wiring Diagram,
page 30)
4. Replace battery in transmitter and receiver
1. Contact local natural or propane/LP gas
company
2. Clean burner(s) (see Cleaning and Mainte-
nance, page 24) or replace burner orifice(s)
1. Clean burner (see Cleaning and Mainte-
nance, page 24) 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 Mainte-
nance, page 24)
2. Replace gas control
3. Problem will stop after a few hours of op-
eration
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 local natu-
ral or propane/LP gas company
3. Observe minimum installation clearances
(see pages 8 through 10)
4. Clean burners (see Cleaning and Mainte-
nance, page 24) 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 Ventila-
tion requirements (page 5)
1. Properly locate logs (see Installing Logs,
pages 15 through 17)
2. Eliminate source of drafts around heater
3. Clean out air holes at burner inlet. Periodi-
cally repeat as needed
4. Remove blockage or replace burner
110399-01B