Operating instructions

1104UESAGBEN, page 28/31
NO
YES NO
Y
E
S
NO
T
rial for i
g
nition
Call for hea
t
I
s
there a spark
across
g
ap at
i
g
niter
?
I
s
th
e
r
e
lin
e
volta
g
e at spark
i
g
n
it
e
r
?
C
heck connection at spark
i
g
niter
R
eplace i
g
niter
I
s
th
e
r
e
lin
e
volta
g
e to the
c
ontrol rela
y?
R
eplace control
r
ela
y
C
heck wirin
g
co
nn
ec
ti
o
n
s
Y
E
S
Y
E
S
Y
E
S
NO
Y
E
S
NO YES NO
Y
E
S
NO
Y
E
S
NO
T
rial for i
g
nition
Call for hea
t
I
s
there a spark
across
g
ap a
t
i
g
niter
?
Does
g
as i
g
nite
?
I
s
th
e
r
e
min.
f
l
a
m
e
cu
rr
e
nt
a
t
th
e
fl
a
m
e
se
n
so
r
?
I
s
th
e
r
e
min.
f
l
a
m
e
cu
rr
e
nt
a
t th
e
co
ntr
o
l m
odu
l
e?
C
heck connections to
f
lame
s
ensor and
/
or moisture in the
burner assembl
y
R
eplace control modul
e
I
s
th
e
f
l
a
m
e
sensor
co
rr
oded?
C
lean
f
lame sensor with
e
mer
y
cloth or steel wool
I
s
th
e
se
n
so
r
l
oca
t
ed
in
f
l
a
m
e?
R
eposition
f
lame
sensor
I
s
th
e
h
ea
t
e
r
g
rounde
d
(
earthed
)?
R
eplace
f
lame sensor
C
onnect
g
round wire
(
earth
)
t
o
u
nit
c
h
ass
i
s
YES
NO
NO YES
NO
YES NO YES
NO
YES
YES
YES NO
NO
Trial for ignition
Call for heat
Is there a spark
across gap at
igniter?
Does gas ignite?
Is gas flowing?
Is there line
voltage to the gas
valve?
Replace gas valve
Is burner jet opening
correct size for gas
used
(
check ratin
g
label on
heater)
Change injector (correct
size shown on heater
rating label)
Air in the gas line
Bleed air from gas line
Is the igniter
position correct
in the gas flow?
Check gas pressure & supply voltage.
If either are low, correct and repeat
startup
Reposition spark igniter
Is there line
voltage from
valve output on
control module to
chassis?
Replace ignition
control module
Check wiring &
connection to gas valve