Desa VTGF33NRB - Manual (Page 29)

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OBSERVED PROBLEM
When ignitor button is pressed,
there is spark at ODS/pilot but no
ignition (manual ignition mode)
ODS/pilot lights but flame goes
out when control knob is released
(manual ignition mode)
REMEDY
1. Turn on gas supply or open
equipment shutoff valve
2. Turn control knob to PILOT
position full counterclockwise
3. Continue holding control knob
in full counterclockwise posi-
tion. Repeat igniting operation
until air is removed
4. Contact local propane/LP gas
company
5. Clean ODS/pilot (see Clean-
ing and Maintenance, page
25) or replace ODS/pilot as-
sembly
6. Replace gas regulator
1. Turn control knob fully coun-
terclockwise
2. After ODS/pilot lights, hold
control knob for 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 25) or replace ODS/pilot
assembly
5. Hand tighten until snug, then
tighten 1/4 turn more
6. Replace pilot assembly
7. Replace control valve
TROUBLEShOOTING
Continued
POSSIBLE CAUSE
1. Gas supply turned off or
equipment shutoff valve
closed
2. Control knob not in PILOT
position
3. Air in gas lines when in-
stalled
4. Depleted gas supply (pro-
pane/LP only)
5. ODS/pilot is clogged
6. Gas regulator setting is not
correct
1. Control knob not fully turned
counterclockwise
2. Control knob not held 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
OD S/pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged