Desa V)CD36RN - Manual (Page 39)

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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
Delayed ignition burner
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
operation until air is removed
5. Contact local propane/LP gas
company
6. Clean pilot (see Cleaning and
Maintenance, page 37) or re-
place 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 shutoff
valve
4. A) Contact local natural or
propane/LP gas company
B) Clean pilot (see Cleaning
and Maintenance, page 37)
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 37) or
replace burner orifice
2. Contact local propane/LP or
natural gas company
3. Reconnect leads to TP & TPTH
terminals on control valve
4. Replace thermopile
1. Contact local propane/LP or
natural gas company
2. Clean burner (see Cleaning
and Maintenance, page 37) or
replace burner orifice
TROUbLEShOOTING
Continued
POSSIBLE CAUSE
1. Gas supply turned off or equip-
ment shutoff valve closed
2. Gas control knob not in PI-
LOT position
3. Gas control knob not pressed
in while in PILOT position
4. Air in gas lines when in-
stalled
5. Depleted gas supply (propane/
LP models only)
6. Pilot is clogged
7. Gas regulator setting is not
correct
1. Gas control knob not fully
pressed in
2. Gas 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
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 disconnect-
ed or improperly connected
4. Thermopile is defective
1. Manifold pressure is too low
2. Burner porting or orifice
clogged