Desa VSGF33NRC - Manual (Page 24)

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TROUBLEShOOTING
Continued
OBSERVED PROBLEM
ODS/pilot lights but flame goes
out when control knob is re-
leased
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
REMEDY
1. Press in control knob fully
2. After ODS/pilot lights, keep con-
trol knob pressed in 30 seconds
3. Fully open equipment shutoff
valve
4. A) Contact local natural or
propane/LP gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance,
page 21) or replace ODS/pilot
assembly
5. Hand tighten until snug, then
tighten 1/4 turn more
6. Replace pilot assembly
7. Replace control valve
1. Contact local natural or pro-
pane/LP gas company
2. Clean burner(s) (see Cleaning
and Maintenance, page 21) or
replace burner orifice(s)
3. Reconnect leads (see Wiring
Diagram, page 22)
4. Replace battery in transmitter
and receiver
1. Contact local natural or pro-
pane/LP gas company
2. Clean burner(s) (see Cleaning
and Maintenance, page 21) or
replace burner orifice(s)
1. Clean burner (see Cleaning
and Maintenance, page 21) or
replace burner orifice(s)
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 21)
2. Replace gas control
3. Problem will stop after a few
hours of operation
POSSIBLE CAUSE
1. Control knob not fully
pressed in
2. Control knob not pressed in
long enough
3. Equipment shutoff valve not
fully open
4. Pilot flame not touching
thermocouple, which allows
thermocouple to cool, caus-
ing pilot flame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
1. Inlet gas pressure is too low
2. Burner orifice(s) clogged
3. Thermopile leads disconnected
or improperly connected
4. Burner will not come on in
remote position
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