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5.1-3
3
August 1999
Pr
ob
le
m
LED cons
tant on
LED light
no
t on
during a
call f
or
heat.
N
ormal operation.
Is heat
er
plugged in?
Is
po
w
er supply
switch set t
o
“On”?
Plug heat
er in.
Mo
ve
the
select
or switch
to
the “On” position.
Ye
s
No
Ye
s
Ye
s
Ye
s
Ye
s
Is
thermostat
set abo
ve
r
oom
te
m
perature?
Set thermostat
abo
ve
r
oom
te
m
perature.
Is
thermostat
def
ectiv
e? Check
for continuity
.
Is
pr
oper
voltage supplied
to
heat
er po
w
er cor
d
and thr
ough po
w
er
cor
d?
Check dataplat
e f
or
electrical supply
req
uirements. Pr
ovide
pr
oper v
oltage fr
om
electrical supply
. Check
cir
cuit break
er
s in
building electrical
syst
em. Check po
w
er
cor
d f
or continuity
.
R
eplace thermostat
R
eplace po
w
er supply switch
Are 2
4
v
olts
supplied fr
om
transf
ormer?
R
eplace
transf
ormer
No
No
No
No
No
No
Ye
s
Are
24
v
olts
supplied t
o
ignition module?
Poor electrical connection or br
ok
en
wire present. R
epair or replace.
Ye
s
LED light in module is def
ectiv
e.
R
eplace ignition module.
Is
pr
oper
voltage supplied t
o
transf
ormer?
Check electrical connections and po
w
er supply t
o
transf
ormer
.
R
epair as necessar
y.
No
Ye
s
Ye
s
Is
po
w
er supply
switch def
ectiv
e?
Check f
or
continuity
.
No
PR
OBLEMS