L.B. White Sentinel Radiant Tube AT150 Center Mount - Manual (Page 26)

Three Times Ig
n
it
io
n
f
a
il
u
re
.
T
h
e
c
o
n
tr
o
l
m
o
d
u
le
is
i
n
s
a
fe
ty
l
o
c
k
o
u
t.
Is
pr
oper fuel
supplied t
o
heat
er
inlet?
Connect pr
oper
gas supply t
o
heat
er
. Open all
gas shut
of
f v
a
lv
es.
Ye
s
No
Is
pr
oper gas
pressure supplied
to
h
e
a
te
r?
Ye
s
Pr
o
v
ide pr
oper gas
supply and pressure t
o
heat
er
. R
e
fe
r t
o
dataplat
e
No
Does
gas contr
o
l v
a
lv
e
open? Check f
o
r manif
o
ld
pressure at outlet of
contr
o
l v
a
lv
e
Is ignit
o
r
pr
operly
gapped?
Are
2
4
v
o
lts supplied
to
gas contr
o
l
va
lv
e
?
Def
e
ctiv
e
gas contr
o
l
va
lv
e
.
R
e
place it.
Ye
s
Ye
s
Check ignit
e
r gap and
regap, if necessar
y, t
o
specif
ications.
-- Def
e
ctiv
e Wires or
Connections, R
e
pair
or
R
e
place.
-- Def
e
ctiv
e Ignition
Contr
o
l Module.
No
No
No
Does ignit
e
r
spark?
Ye
s
Is
ignit
e
r high v
o
ltage
lead connect
ed?
No
No
Connect high v
o
ltage lead
Ye
s
A
. Check high v
o
ltage lead
fo
r continuity and tight
connections. R
e
place if
def
e
ctiv
e.
B. Def
e
ctiv
e, im
pr
operly
gapped, or dir
ty ignit
e
r,
R
e
place, regap, or clean
ignit
e
r.
C. Def
e
ctiv
e Ignition contr
o
l.
R
e
place.contr
ol
Five T
imes
If contr
o
l module does no
t reset, then replace it.
(Int
ernal boar
d f
a
ult.)
If module resets, then ha
v
e
q
u
alif
ied electrician check po
w
e
r
sour
ce f
o
r po
w
e
r q
u
ality pr
oblems. (F
req
uency
, line noise, line
spik
es, loose connections, t
oo small wire gauge.)
Flame sense relat
e
d pr
oblems. Check f
o
r crack
ed or dir
ty flame sensor
,
im
pr
operly positioned sensor
, or poor flame sense gr
ound.
Four T
imes
Lockout from too many flame losses.
26
Does ignition contr
o
l
receiv
e 2
4
V
A
C at
te
rminal W during
ignition seq
uence?
No
P
o
or electrical
connections, repair
or replace
Im
pr
operly sized
electrical wiring
fr
om thermsoat t
o
contr
o
ller
. R
e
size
electriclal wiring.
Ye
s