L.B. White AW250, Инструкция и руководство пользователя

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Four Times
If HSI boar
d does no
t reset, then replace the boar
d. (Int
ernal boar
d f
ault.)
Ha
v
e
q
ualif
ied electrician check po
w
er sour
ce f
or po
w
er q
uality pr
oblems.
(F
req
uency
, line noise, or line spik
es.)
Five Times R
a
p
id
O
n
/Off
Cycl
ing o
f
th
e
Bur
ne
r.
See Flame Sensor R
elat
ed Pr
oblems
in “Three Time” Flash Patt
ern.
Six Times
Lo
w Micr
oam
p Output F
or Flame Sensing. Check Micr
oam
p
Output f
or Pr
oper Flame Pr
o
ving of Flame Sensor
.
(1)
With an
y electrical pr
oblem, all wiring should be check
ed f
or good connections and pr
oper v
oltage and repaired if a
pr
oblem is f
ound.
(2)
The ignition contr
ol boar
d sends and receiv
es v
oltages thr
oughout the entire operation seq
uence. The HSI boar
d
terminals should also be check
ed f
o
r 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, t
o
mak
e sure the boar
d itself is w
o
rking pr
operly
.
(3)
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 discharge outlet of heat
er
.
(4)
With a six time flash patt
ern, the heat
er will continue t
o
operat
e as normal. This flash patt
ern means, ho
w
e
v
e
r,
that
flame sense is lo
w and that flame f
ailure or im
pr
oper operation can occur at an
y time.
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