L.B. White Sentinel Radiant Tube AT150 Center Mount - Manual (Page 24)

R
e
d
L
E
D
C
o
n
s
ta
n
t
O
n
Normal Operation
Problem R
e
d
L
E
D
n
o
t
o
n
d
u
ri
n
g
a
c
a
ll
f
o
r
h
e
a
t.
Is heat
er
plugged in?
Does heat
er
star
t?
Ye
s
No
Ye
s
Ye
s
Ye
s
Is
thermostat
set abo
v
e r
oom
te
m
p
erature?
Set thermostat
abo
v
e r
oom
te
m
p
erature.
Is
thermostat
def
e
ctiv
e? Check
fo
r v
o
ltage supply
int
o
and out of
thermostat.
Is
pr
oper
v
o
ltage supplied
to
heat
er po
w
e
r cor
d
and thr
ough po
w
e
r
cor
d
?
Check dataplat
e f
o
r
electrical supply
req
uirements. Pr
o
v
ide
pr
oper v
o
ltage fr
om
electrical supply
. Check
cir
c
uit break
e
rs
in
building electrical
syst
em. Check po
w
e
r
cor
d
f
o
r continuity
.
R
e
place thermostat
Are
2
4
v
o
lts
supplied fr
om
transf
o
rmer?
R
e
place
transf
o
rmer
No
No
No
No
Ye
s
Are
2
4
v
o
lts
supplied t
o
ignition
contr
o
l t
e
rminal W
during ignition
seq
uence
P
o
or electrical connection or br
ok
en wire present. R
e
pair or replace.
V
o
ltage dr
op fr
om thermostat t
o
t
e
rminal W on ignition contr
o
l.
Incorrect wire size fr
om thermostat t
o
t
e
rminal W on ignition contr
o
l.
Ye
s
R
e
place ignition contr
o
l.
Is
pr
oper
v
o
ltage supplied
to
transf
o
rmer?
Check electrical connections and po
w
e
r
supply t
o
transf
o
rmer
.
R
e
pair as necessar
y.
No
Ye
s
24
Plug heat
er in.
No
Ye
s
R
e
place red LED
No