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19
Problem
LED Constant On
L
ED
L
ight
N
ot
O
n
Normal Operation
Is pr
oper v
oltage
supplied t
o
heat
er?
Check data plat
e f
o
r
electrical supply
req
uirments.
Pr
o
vide pr
oper
v
oltage, contact
electrician.
Ye
s
No
Ye
s
Ye
s
Ye
s
Def
ectiv
e wire or
electrical connection.
R
eapir or replace.
Is
thermostat
def
ectiv
e? Check f
or
continuity
.
Are 2
4
v
olts
supplied t
o
ignition
contr
ol t
erminal W
fr
om thermostat?
R
eplace thermostat
Is heat
er
connect
ed t
o
po
w
er supply?
No
No
No
Ye
s
Ensure heat
er is
connect
ed t
o
po
w
e
r
supply
. Check
break
er
s
Is transf
ormer
receiving pr
oper
v
oltage?
Check wiring f
o
r
continuity betw
een
transf
ormer and po
w
e
r
supply
. R
epair or replace
No
Ye
s
Does
transf
ormer
reduce
incoming
v
oltage t
o
2
4
v
olts?
Def
ectiv
e transf
ormer
.
R
elace transf
ormer
.
No
Is 2
4
v
olts
deliv
ered t
o
thermostat?
Check wiring betw
een
transf
ormer and
thermostat. Check
continuity
. R
epair as
needed.
No
Ye
s
Ye
s
Is
thermostat set
abo
v
e
r
oom
te
m
perature?
Set thermostat
abo
v
e
r
oom
te
m
perature.
No
Def
ectiv
e
ignition contr
ol.
Содержание Therma Grow 120NG
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Страница 25: ...24 Electrical Connection and Ladder Diagram 115 Volt Supply 120 VOLT...
Страница 26: ...25 230 Volt Supply 120 VOLT...