![background image](http://html1.mh-extra.com/html/l-b-white/aw060/aw060_installation-and-service-manual_3182684034.webp)
5.1-4
4
August 1999
Pr
ob
le
m
LE
D
FF
la
sh
in
g
O
ne
TT
im
e
Flash patt
ern begins
immediat
ely
, fan mo
to
r
does no
t run. Heat
er
does no
t light.
Is flapper or
air
-pr
oving switch arm
binding on housing? Is there an obstruction in
heat
er outlet?
Is air
-
pr
oving switch
shor
ted? (P
er
form
continuity check on air
-
pr
oving switch.)
Ye
s
No
R
epair and/or remo
ve
obstructions.
Ye
s
R
eplace air
-pr
oving switch.
R
ap
id
FF
la
sh
R
ev
er
se polarity
. Ha
ve
electrician check neutral and ho
t wire
connections that outlet heat
er is connect
ed t
o.
Lo
ng
FF
la
sh
Tw
o seconds
on, tw
o
seconds of
f
repe
titiv
ely
for 1
5
minut
es.
Heat
er has att
em
pt
ed tw
o ignition trials. Heat
er is in a 1
5
minut
e w
ait period bef
ore att
em
pting its
thir
d (f
inal) trial f
or ignition. If ignition is no
t achie
ved af
ter the thir
d trial, the heat
er will lock out and
the ignition contr
ol module will present the three time flash patt
ern. Either recy
cle the heat
er or w
ait
for heat
er t
o att
em
pt thir
d ignition trial.