L.B. White Oval 80™ Radiant - Manual (Page 27)

Three Times Ign
iti
on
fai
lu
re
.
Th
e
con
tr
ol
mo
du
le
i
s
in
sa
fe
ty
loc
kou
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
alv
es.
Ye
s
No
Is
pr
oper gas
pressure supplied
to
heat
er?
Ye
s
Pr
ovide pr
oper gas
pressure t
o heat
er
.
R
ef
er t
o dataplat
e
No
Does the
heat
er ha
ve
a
good ear
th
gr
ound?
Ye
s
No
Five T
imes
If contr
ol module does no
t reset, then replace 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, im
pr
oper wire gauge.)
Flame sense relat
ed pr
oblems. Check
for crack
ed or dir
ty ignit
er or poor flame
sense gr
ound.
Four T
imes
Lockout from too many flame losses.
27
Are 2
4
v
olts
supplied t
o the
gas contr
ol
valv
e?
Has
the burner
orif
ice or casting
been check
ed f
or
block
age?
Ye
s
Is pr
oper gas
pressure read at the
outlet of gas the v
alv
e?
Does ignit
er
spark?
Is ignit
er high
voltage cable connect
ed?
Has high v
oltage
cable been check
ed f
or
continuity?
Ye
s
(A)
If lo
w or high pressure
is read, adjust outlet pressure as necessar
y.
(B)
If gas pressure is no
t
read, replace the gas contr
ol v
alv
e.
Connect cable t
o ignit
er
and igntion contr
ol.
Check continuity
.
If an o
verload or
inf
intiy readout is
giv
en, replace the
cable.
Check wiring betw
een
module and
com
ponent. R
epair or
replace as necessar
y,
or replace ignition contr
ol module.
R
emo
ve
orif
ice and burner
casting. Blo
w out with
com
pressed air or clean with a sof
t brush.
No
No
No
No No
No
Ye
s
Ye
s
Ye
s
Correct the gr
ound
wiring as needed. Contact a q
ualif
ied
electricianlv
e.
Det
ermine if ignit
or receiv
es high v
oltage.
C
LOSE
THE
GAS
SU
PPLY
W
HEN
DO
ING
THESE
TESTS
.
(Assistance of ano
ther per
son ma
y be req
uired)
A. -- Open the burner bo
x.
-- Disconnect ignition lead fr
om ignition contr
ol.
-- P
osition a scre
wdriv
er tip about 3/1
6 inch a
w
ay
fr
om ignition contr
ol where lead w
as connect
ed .
-- Star
t the heat
er
.
-- When f
an mo
tor star
ts, b
y-pass the air pressure switch.
-- If spark is no
t obser
ved, replace the ignition contr
ol.
B
.
-- If spark is obser
ved, reconnect igntion cable t
o contr
ol.
-- Disconnect the lead at the ignit
or
.
-- Hold the scre
wdriv
er about 3/1
6 in. fr
om the ignit
er
connect
or within the boo
t.
-- Star
t the heat
er
.
-- When f
an mo
tor star
ts, b
y-pass the air pressure switch.
-- If spark is no
t obser
ved, replace the ignition lead.
-- If spark is obser
ved, replace the ignit
or
.
Is ignit
er
pr
operly gapped?
Gap should be 1/8 in.
No
Ye
s