18
OBSERVED PROBLEM
ODS/pilot lights but flame
goes out
Burner does not light after
ODS/pilot is lit
Delayed ignition of burner
Burner backfiring during
combustion
POSSIBLE CAUSE
1.
2.
3.
4.
Equipment shutoff valve
not fully open
5.
Thermocouple connection
loose as control valve
6.
Pilot flame not touching
thermocouple, which al
-
lows thermocouple to cool,
causing pilot flame to go
out. This problem could be
caused by one or both of
the following:
A) Low gas supply
B) Dirty or partially
clogged ODS/pilot
7.
Thermocouple Connection
loose
Control valve damaged
1.
Burner orifice(s) is clogged
2.
Inlet gas pressure is too
low
1.
Manifold pressure is too
low
2.
Burner orifice(s) clogged
1.
Burner orifice(s) is clogged
or damaged
2.
Damaged burner
3.
Gas regulator defective
4.
Inlet gas pressure is too
low
REMEDY
4.
Fully open equipment shut
-
off valve
5.
Hand tighten until snug,
then tighten 1/4 turn more
6.
A) Contact local natural or
propane/LP gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance,
page 16)
7.
Replace pilot assembly
Replace control valve
1.
Clean burner orifice (see
Cleaning and Maintenance,
page 16) or replace burner
orifice
2.
Contact local natural or
propane/LP gas company
1.
Contact local natural or
propane/LP gas company
2.
C
l
ea
n burn
e
r
(
s
ee
C
l
eani
ng
a
n
d
M
a
int
ena
n
ce,
p
a
g
e
16)
or replace burner orifice
1.
Clean burner (see Cleaning
and Maintenance, page 16)
or replace burner orifice
2.
Replace damaged burner
3.
Replace gas regulator
4.
Contact local natural gas or
propane/LP company
TROUBLESHOOTING
continued
1.
2.
3.
T
ighten thermocouple (fin-
ger tight plus 1/4 turn)
Thermocouple Bad/Damaged
Safety interlock system has
been triggered
W
ait one minute for the saf-
ety interlock system to reset.
Repeat ignition operation
3. Leads disconnected f
r
om
valve or module boa
r
d
3. V
erify all plugs are firmly
connected to their mating
points
Burner cycles on and off -
Unit makes 2 “beeps” every
second
1. unstable pilot due to drafts
or air currents
1. make sure no fans or air
currents are blowing into
fireplace
