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20
Problem
LED Flashing
O
ne
T
ime
Flash Patt
ern
Begins
Immediat
ely
Af
ter Condition
O
ccur
s.
Is
air pr
o
ving switch stuck
closed or shor
ted ? Check
continuity
.
Is
air
flo
w switch arm
binding in f
a
n
housing?
F
ree the switch .
Det
ermine casue of
flapper binding.
Check f
or damage t
o
fan housing,.
Ye
s
Ye
s
No
No
R
eplace air pr
o
ving switch
Def
ectiv
e wire or poor
connections t
o
air pr
o
ving switch.
R
epair wire or connections.
Has air pr
o
ving switch
been jum
pered?
Ye
s
No
R
emo
v
e
jum
per fr
om switch.
Rapid Flash
R
e
v
e
rse polarity
. Ha
v
e
electrician check neutral and ho
t wire
connections that outlet heat
er is connect
ed t
o
.
Long Flash
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
v
ed 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 f
o
r
heat
er t
o
att
em
pt thir
d ignition trial.
Содержание Therma Grow 120NG
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