L.B. White 170 Premier - Manual (Page 22)

All lights are ON
Power status light not on
Normal Operation
HEA
TING MODE
22
Is
cir
cuit break
er
closed?
R
eset break
er
.
Det
ermine casue of
break
er tripping
No
Is
thermostat
set abo
v
e
r
oom
te
m
perature?
Set thermostat
abo
v
e
r
oom
te
m
perature.
No
Ye
s
Ye
s
Is po
w
er
delie
v
ered t
o
thermostat?
R
eplace
Thermostat.
No
Ye
s
Is
thermostat
def
ectiv
e? Check
continuity?
No
Check electrical
wiring and
connections
Ye
s
Is heat
er
po
w
er cor
d
def
ectiv
e? Check
continuity
.
R
eplace po
w
e
r
cor
d.
T
ransformer
status light is not on.
Is
transf
ormer
deliv
ering 2
4
v
olts
to
t
erminal W on
ignition contr
ol? No
Is
transf
ormer
receiving main
v
oltage?
Check wiring and
electrical connections
No
Check wiring and electrical
connections. If electrical
connections are good,
replace transf
ormerr
Ye
s
Ye
s
Ye
s
Check electrical wiring and connections t
o
light. Ensure 2
4
v
olts is supplied t
o
light. If 2
4
v
olts is supplied, replace light.
No
Is
main po
w
e
r
supplied t
o
LED ?
Is
main po
w
er
supplied t
o
t
erminal
LI on ignition
contr
ol?
Ye
s
Ye
s
Check electrical connections. If good replace LED