Desa VFRMV18PA Electric Heater User Manual


 
114745-01
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20
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
One or both burner does not light after ODS/pilot
is lit
Delayed ignition of burner
Burner backfiring during combustion
Orange flame in burner during burner com
-
bustion
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
REMEDY
1. Contact local natural or propane/LP gas com-
pany
2. Clean burner(s) (see Cleaning and Mainte
-
nance, page 18) or replace burner orifice(s)
3. Contact qualified service person
4. Replace burner orifice(s)
5. Put remote selector in ON position
6. See Wiring Diagram
, page 23
1. Contact local natural or propane/LP gas com
-
pany
2. Clean burner(s) (see Cleaning and Mainte
-
nance, page 18) or replace burner orifice(s)
3. Contact qualified service person
1. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner(s) for dirt and debris. If found,
clean burner(s) (see Cleaning and Mainte
-
nance, page 18)
2. Replace gas regulator
1. Problem will stop after a few hours of opera
-
tion
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 natural
or propane/LP gas company
3. Observe minimum installation clearances (see
pages 7 through 10)
4. Clean burners (see Cleaning and Mainte
-
nance, page 18) or replace burner orifice(s)
1. Turn heater off when using furniture polish,
wax, carpet cleaners, or similar products
1. Refer to Air for Combustion and Ventilation
requirements (page 4)
POSSIBLE CAUSE
1. Inlet gas pressure is too low
2. Burner orifice(s) clogged
3. Mislocated crossover tube
4. Burner orifice(s) diameter is too small
5. Remote selector in OFF position (Remote-
Ready Models Only)
6. Wire disconnected from gas control (Remote-
Ready Models Only)
1. Manifold pressure is too low
2. Burner orifice(s) clogged
3. Mislocated crossover tube
1. Burner orifice is clogged or damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing processes and
logs curing
1. Turning control knob to HI position when burn
-
ers 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. turn into white
powder residue
1. Not enough combustion/ventilation air
TROUBLESHOOTING
114745-01