Desa TUDOR - Page 34

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111986-01F34

Pilot lights but flame goes
out when control knob is
released
Burner does not light after
pilot is lit
Delayed ignition burner
Burner backring during com-
bustion
Slight smoke or odor during
initial operation

1. Gas control knob not fully
pressed in
2. Gas contr o l k n ob n ot
pressed in long enough
3. Equipment shutoff valve not
fully open
4. Pilot flame not touching
thermocouple, which al-
lows thermocouple to cool,
causing pilot ame to go
out. This problem could be
caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged
pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
1. Burner orice clogged
2. Inlet gas pressure is too
low
3. Thermopile leads discon-
nected or improperly con-
nected
4. Thermopile is defective
1. Manifold pressure is too
low
2. Burner porting or orifice
clogged
1. Burner orice is clogged or
damaged
2. Damaged burner
3. Gas regulator defective
1. Residues from manufac-
turing processes and logs
curing
REMEDY
1. Press in gas control knob
fully
2. After pilot lights, keep gas
control knob pressed in 30
seconds
3. Fully open equipment shut-
off valve
4. A) Contact local natural or
propane/LP gas company
B) Clean pilot (see Cleaning
and Maintenance, page 31)
or replace pilot assembly
5. Hand tighten until snug, then
tighten 1/4 turn more
6. Replace pilot assembly
7. Replace control valve
1. Clean burner (see Cleaning
and Maintenance, page 31)
or replace burner orice
2. Contact local propane/LP or
natural gas company
3. Reconnect leads
4. Replace thermopile
1. Contact local propane/LP or
natural gas company
2. Clean burner (see Cleaning
and Maintenance, page 31)
or replace burner orice
1. Clean burner (see Cleaning
and Maintenance, page 31)
or replace burner orice
2. Replace damaged burner
3. Replace gas control
1. Problem will stop after a few
hours of operation
TROUbLESHOOTING
Continued