Filter
Top Products
www.desatech.com
115254-01A
30
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Control knob not fully
pressed in
2. Control knob not pressed in
long enough
3. Safety interlock system has
been triggered
4. Equipment shutoff valve not
fully open
5. 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
6. Thermocouple connection
loose at control valve
7. Thermocouple damaged
8. Control valve damaged
1. Inlet gas pressure is too low
2. Burner orifice(s) clogged
3. Mislocated crossover tube
4. Remote selector in OFF position
(Remote-Ready Models Only)
5. Wire disconnected from gas
control (Remote-Ready Mod
-
els Only)
1. Manifold pressure is too low
2. Burner orifice(s) clogged
3. Mislocated crossover tube
REMEDY
1. Press in control knob fully
2. After ODS/pilot lights, keep
control knob pressed in 30
seconds
3. Wait one minute for safety in
-
terlock system to reset. Repeat
ignition operation
4. Fully open equipment shutoff
valve
5. A) Contact local natural or
propane/LP gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance
,
page 28) or replace ODS/pilot
assembly
6. Hand tighten until snug, then
tighten 1/4 turn more
7. Replace pilot assembly
8. Replace control valve
1. Contact local natural or pro
-
pane/LP gas company
2. Clean burner(s) (see Cleaning
and Maintenance, page 28) or
replace burner orifice(s)
3. Contact qualified service person
4. Put remote selector in ON
position
5. See Wiring Diagram, page 33
1. Contact local natural or pro-
pane/LP gas company
2. Clean burner(s) (see Cleaning
and Maintenance, page 28) or
replace burner orifice(s)
3. Contact qualified service
person
OBSERVED PROBLEM
ODS/pilot lights but flame goes
out when control knob is re
-
leased
One or both burners do not light
after ODS/pilot is lit
Delayed ignition of one or both
burners