L.B. White 350 Premier Dual Fuel - Manual (Page 26)

26
Is
Pr
oper F
uel
Supplied t
o Heat
er
Inlet?
Connect Pr
oper
Gas Supply t
o
Heat
er
. Open All
Gas Shut
of
f
Valv
es.
Ye
s
No
Is
Pr
oper Gas
Pressure Supplied
to
Heat
er?
Ye
s
Ye
s
Pr
ovide Pr
oper Gas
Supply and Pressure t
o
Heat
er
. R
ef
er t
o
Dataplat
e
No
No
Is
High Limit
SwitchT
ripped?
Check
Continuity
Does Gas
Solenoid V
alv
e
Open? (T
urn Unit On.
Should Hear A
udible Click
When V
alv
e Opens, Appr
ox.
4-5 Seconds Af
ter P
ow
er
is Supplied
To
Unit.
Is Ignit
or
Pr
operly
Gapped?
Are
24
V
olts
Supplied t
o
Gas V
alv
e?
Def
ectiv
e Gas
Valv
e. R
eplace
Gas V
alv
e.
Ye
s
Ye
s
Ye
s
Check Ignit
er Gap
and R
egap, if
Necessar
y,
to
Specif
ications.
Def
ectiv
e Wires or
Connections,
R
epair or R
eplace.
No
No
No
Does Ignit
or
Spark?
Ye
s
Is
Ignit
er High V
oltage
Lead Connect
ed?
No
Is Ignit
or Gap
Positioned Pr
operly?
No
R
eposition Ignit
er
.
(See Ser
vice
Instructions)
No
Connect High V
oltage Lead
Ye
s
A.
Check High V
oltage
Lead F
or Continuity
and Tight Connections. R
eplace if Def
ectiv
e.
B. Def
ectiv
e, Im
pr
operly
Gapped, or Dir
ty
Ignit
er
, R
eplace,
R
egap, or Clean
Ignit
er
.
Th
re
e T
Ti
m
es
In
di
ca
te
s
B
ur
ne
r
Fa
ilu
re
.T
he
C
on
tr
ol
M
od
ul
e
H
as
G
on
e
in
to
S
af
et
y
Lo
ck
ou
t.
Fl
as
h
Pa
tt
er
n
B
eg
in
s
W
ith
in
3
0
S
ec
on
ds
Af
te
r
C
on
di
tio
n
O
cc
ur
s.
Fi
ve
TT
im
es
If contr
ol module does no
t reset, then replace the it (Int
ernal
boar
d f
ault.)
If module resets, then ha
ve
q
ualif
ied electrician check po
w
er
sour
ce f
or po
w
er q
uality pr
oblems. (F
req
uency
, line noise, line
spik
es, loose connections, t
oo small wire gauge.)
Flame sense relat
ed pr
oblems. Check f
or crack
ed or dir
ty flame sensor
,
im
pr
operly positioned sensor
, or poor flame sense gr
ound.
Fo
ur
TT
im
es
Lo
ck
O
ut
F
ro
m
Fl
am
e
S
en
se
Lo
ss
If High Limit Switch is T
ripped,
R
eset the Switch and Det
ermine
Cause of High Limit T
ripping.
(The Switch Ma
y Ha
ve
a R
ed Cap
Ov
er its R
eset Butt
on. If Y
ou
R
emo
ved the Cap t
o R
eset the
Switch, Ensure Y
ou Put it Back On.)