Desa CD36RN Owner's Operation And Installation Manual page 40

OBSERvED PROBLEM
When ignitor button is pressed,
there is spark at pilot but no
ignition
Pilot lights but flame goes
out when control knob is
released
Burner does not light after
pilot is lit
40
TROUbLEShOOTING
Continued
POSSIBLE CAUSE
1. Gas supply turned off or
equipment shutoff valve
closed
2. Gas control knob not in
PILOT position
3. Gas control knob not pressed
in while in PILOT position
4. Air in gas lines when in-
stalled
5. Depleted gas supply (pro-
pane/LP models only)
6. Pilot is clogged
7. Gas regulator setting is not
correct
1. Gas control knob not fully
pressed in
2. G a s c o n t r o l k n o b n o t
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
pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
1. Burner orifice clogged
2. Inlet gas pressure is too
low
3. Thermopile leads discon-
nected or improperly con-
nected
4. Thermopile is defective
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REMEDY
1. Turn on gas supply or open
equipment shutoff valve
2. Turn gas control knob to
PILOT position
3. Press in gas control knob
while in PILOT position
4. Continue holding down con-
trol knob. Repeat igniting op-
eration until air is removed
5. Contact local propane/LP
gas company
6. Clean pilot (see Cleaning
and Maintenance, page 38)
or replace pilot assembly
7. Replace gas regulator
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 38)
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 38)
or replace burner orifice
2. Contact local propane/LP or
natural gas company
3. Reconnect leads to TP and
TPTH terminals on control
valve
4. Replace thermopile
116035-01J