20
Problem
LED Flashing
One Time
Fl
a
sh
P
atte
rn
B
egin
s
Imm
ediate
ly,
F
an
D
oe
s
N
ot
Ru
n
. Heate
r
D
oe
s
N
ot
L
ig
h
t.
Is Flapper
or Air Flo
w Switch Arm
Binding on Housing? Is
There an Obstruction in
Heat
er Outlet?
Is Air
-
Pr
o
ving Switch
Shor
ted? (P
er
form
Continuity Check on Air
-
Pr
o
ving Switch.)
Ye
s
No
R
epair and/or R
emo
v
e
Obstructions.
Ye
s
R
eplace Air
-Pr
o
ving Switch
Rapid Flash
R
e
v
e
rse P
olarity
. Ha
v
e
Electrician Check Neutral and Ho
t Wire
Connections that Outlet Heat
er is Connect
ed t
o
.
Long Flash
Tw
o
S
e
c
ond
s
O
n
,
Tw
o
S
e
c
ond
s
Off
R
e
p
etiti
v
e
ly
fo
r
15
Min
u
te
s.
Heat
er has A
tt
e
m
p
ted T
w
o Ignition T
rials. Heat
er is in a 1
5
Minut
e W
ait P
eriod Bef
ore A
tt
e
m
pting its
Thir
d (Final) T
rial f
or Ignition. If Ignition is no
t A
chie
v
ed Af
ter the Thir
d T
rial, the Heat
er will Lock Out and
the Ignition Contr
ol Module will Present the “Three Time” Flash Patt
ern. Either R
ecy
cle the Heat
er or
W
ait f
or Heat
er t
o
A
tt
e
m
pt Thir
d Ignition T
rial.
Summary of Contents for AW250
Page 2: ......
Page 26: ...25 Electrical Connection and Ladder Diagram...