L.B. White Guardian with Smart Sense / Direct Connect - Spark Ignition (250K) - Manual (Page 25)

24
If ignition contr
ol module does no
t reset, then replace the contr
ol. (Int
ernal f
ault.)
If ignition contr
ol module resets, then ha
v
e
q
ualif
ied electrician check po
w
er sour
ce
for po
w
er q
uality pr
oblems. (F
req
uency
, line noise, line spik
es, loose connections, t
o
o
small wire gauge.)
Fiv
e Times
Rapid On/Off cycling of the burner.
Ignition contr
ol is identifying a flame sense relat
ed
pr
oblem. Burner flame f
ailure ma
y occur
. Check all
gr
ounds, clean the sensor or check f
or cracks in
sensor insulat
or
.
NO
TES:
(1)
The ignition contr
ol sends and receiv
es v
oltages thr
oughout the entire operation seq
uence. The ignition contr
ol’s t
erminals
should also be check
ed f
or deliv
ering pr
oper v
oltages, in addition t
o
the individual com
ponents as indicat
ed b
y the respectiv
e
flash patt
ern.
(2)
The high-limit switch will open or trip f
or a v
ariety of reasons, such as high gas pressure, lo
w v
oltage, e
xcessiv
e dust and
dir
t
build-up within the heat
er
, dir
ty f
an assembly
, f
an is no
t tight
ened ont
o mo
tor shaf
t, and obstructions in air inlets or discha
rge
outlet of heat
er
.
F
our Times
Poor flame sense.