22
TROUBLESHOOTING
EE
N
o d
isp
la
y
(EE
di
sp
la
y is
E
M
G
m
ode
)
IN
TE
RNA
L F
A
UL
T
• N
o p
ow
er
s
up
pl
y to
ID
b
lo
w
er
/
no
24
v
ol
t pow
er
t
o
P
C
B
• B
low
n f
us
e
or
c
irc
ui
t b
re
ak
er
• PC
B h
as
a
n i
nt
er
na
l f
au
lt
• M
an
ua
l d
isc
on
ne
ct
sw
itch
O
F
F
• N
o po
w
er
s
upp
ly
t
o I
D
bl
ow
er
/
no
24
v
ol
t p
ow
er
t
o
P
C
B
•
B
lown
fu
se
or
fa
ul
ty
c
irc
ui
t
br
ea
ke
r
•
C
ont
ro
l bo
ar
d
ha
s i
nt
er
nal
fa
ul
t
Eb
E
_Eb
N
o D
isp
la
y
S
el
ec
ting "
no he
at
er
k
it"
an
d
re
ce
iv
in
g el
ec
tr
ic
he
at
de
m
and
• N
o he
at
er
k
it s
el
ec
te
d
Ed
E_
Ed
C
hec
k H
eat
er
K
it D
ip
Sw
itc
he
s
(CHE
C
K
HT
R DI
P
S
W
)
H
eat
er
K
it di
p
sw
itc
hes
n
ot
s
et
pr
op
er
ly
• I
nv
al
id
h
ea
te
r k
it
se
le
ct
ed
E5
E
_E5
BL
O
W
N
F
U
SE
F
use
O
pe
n
• F
us
e (F
1U
) i
s
bl
ow
n
• C
onne
ct
or
T
B
10
is
ope
n
EF
E_
EF
A
ux
ilia
ry
C
on
ta
ct
s
O
pe
n
(A
UX
A
LA
R
M
F
A
UL
T)
A
ux
ilia
ry
S
w
itc
h O
pe
n
• Hi
gh
w
at
er
le
ve
l i
n
th
e ev
ap
or
at
io
n c
oi
l
• T
he
co
nne
ct
ed
al
ar
m
d
ev
ic
e i
s a
ct
iv
at
ed
• A
ux
ilia
ry
A
la
rm t
er
m
in
al
s
(T
B
4,
T
B
5)
a
re
o
pe
n
d0
E
_d
0
D
ata
N
ot
Y
et
O
n N
etw
or
k
(N
O
N
E
T D
A
TA
)
D
at
a n
ot
o
n N
etw
or
k
• N
o s
ha
re
d d
ata
o
n t
he
n
etw
or
k
d1
E
_d
1
In
va
lid
D
ata
O
n
N
et
w
or
k
(IN
VAL
ID
D
A
TA
)
In
va
lid D
at
a o
n N
et
w
or
k
• W
ron
g
sh
ar
ed
dat
a
on
t
he
net
w
or
k
d4
E
_d
4
In
va
lid
M
em
or
y C
ar
d dat
a
(IN
VAL
ID
M
C
D
A
TA
)
In
va
lid
M
em
ory
C
ard
D
at
a
• W
ro
ng
m
em
ory
c
ard
d
at
a
b0
E
_b
0
B
low
er
M
ot
or
N
ot
R
unning
(M
O
TO
R
NO
T
RUN)
B
lo
w
er
M
ot
or
no
t
ru
nn
in
g
• F
an
/m
ot
or
ob
st
ru
ct
io
n
• P
ow
er
in
te
rr
up
tio
n
(low
v
ol
tage
)
•
In
co
rr
ec
t / l
oo
se
w
iri
ng
b1
E
_b
1
B
low
er
C
om
m
uni
ca
tion
E
rr
or
(M
OT
OR
C
O
M
M
)
B
lo
w
er
M
ot
or
Com
m
un
ic
at
io
n e
rr
or
•
In
co
rr
ec
t / l
oo
se
w
iri
ng
• P
ow
er
in
te
rr
up
tio
n
(low
v
ol
tage
)
b2
E
_b
2
B
lo
w
er
M
oto
r H
P
M
is
m
at
ch
(M
OT
OR
M
IS
M
A
TC
H
)
B
lo
w
er
M
oto
r H
P
M
is
m
at
ch
•
In
co
rr
ec
t s
iz
e m
oto
r
•
In
va
lid
s
ha
re
d d
at
a
b3
E
_b3
No Di
sp
la
y
B
lo
w
er
M
ot
or
op
er
at
in
g
in
P
ow
er
,
Te
m
p o
r S
pe
ed
Li
m
iti
ng
c
ond
iti
ons
•
F
an
/m
ot
or
ob
st
ru
ct
io
n or
bl
oc
ked f
ilt
er
s
• P
ow
er
in
te
rr
up
tio
n
(low
v
ol
tage
)
• I
nc
or
rec
t
wi
ring
• B
lo
ck
age
in
t
he
ai
rfl
ow
(
du
ct
w
or
k)
or
d
uc
tw
or
k
und
er
si
ze
d
E
rro
r
C
ode
D
e
sc
ri
p
ti
o
n
P
o
ssi
b
le
C
a
u
se
s
C
li
m
at
eT
al
k M
e
ss
a
g
e
P
C
B L
E
D Di
sp
la
y
•
A
ss
u
re
2
0
8
/2
3
0
v
o
lt
a
n
d 2
4
v
o
lt
p
o
w
er
t
o
b
lo
w
er
a
n
d c
o
nt
ro
l b
o
a
rd
.
•
C
h
ec
k f
u
se
F2
U
o
n
c
o
n
tr
o
l bo
a
rd
•
C
h
ec
k f
o
r p
o
ss
ibl
e s
h
o
rt
i
n
2
0
8
/2
3
0
v
o
lt
a
n
d 24
v
o
lt
c
ir
cui
ts
. R
epa
ir
a
s ne
ce
ss
a
ry
.
•
R
epl
a
ce
t
h
e cont
ro
l
boa
rd.
• S
el
ec
t t
he
v
al
id
h
ea
te
r k
it
on
th
er
m
os
ta
t
• V
al
id
di
p
sw
itc
h s
el
ec
tion
(h
ea
te
r k
it
se
lec
tio
n o
ut
of
r
ang
e o
f t
he
un
it
co
nf
ig
ur
at
io
n)
• Se
t co
rr
ec
t
di
p sw
itch
es
• R
epl
ac
e
fu
se
•
C
hec
k
w
iri
ng
t
o A
U
X al
ar
m
, he
at
er
k
it,
c
om
m
uni
ca
tio
n c
onne
ct
io
n.
•
R
epl
ac
e t
he c
on
tr
ol
bo
ar
d
A
ft
er
r
ec
ov
er
in
g t
he
s
ys
te
m
,
E
5
w
ill
st
ill b
e d
is
pla
ye
d o
n
th
e in
do
or
P
C
B
(
ab
ou
t
3
0 s
ec
on
ds
).
B
LO
W
N
F
U
S
E
w
ill s
till
b
e d
is
pla
ye
d
on
t
he
t
he
rmo
st
at
w
ith
in
4
5
se
co
nd
s.
T
he
y w
ill
b
e c
le
ar
ed
a
ut
oma
tic
ally
.
•
C
hec
k
w
at
er
le
ve
l i
n dr
ai
n pa
n
• C
hec
k a
lar
m
de
vi
ce
.
• C
lo
se
A
ux
ilia
ry
t
er
m
in
al
s
TB
4 a
nd
T
B
5 i
f n
ot
u
se
d
A
ft
er
r
ec
ov
er
in
g t
he
s
ys
te
m
,
E
F
w
ill s
till
b
e d
is
pla
ye
d
on
t
he
in
do
or
P
C
B
(
ab
ou
t
3
0 s
ec
on
ds
).
A
U
XI
LI
A
R
Y
C
O
N
T
A
C
T
S
O
P
E
N
w
ill
st
ill b
e
di
sp
la
ye
d o
n t
he
t
he
rmo
st
at
w
ith
in
4
5 s
ec
on
ds
.
T
he
y w
ill b
e c
le
ar
ed
a
ut
oma
tic
al
ly
.
• P
opulat
e s
ha
red
d
at
a s
et
u
si
ng m
em
or
y c
ar
d.
• P
opulat
e s
ha
red
d
at
a s
et
u
si
ng m
em
or
y c
ar
d.
•
R
epl
ac
e c
irc
ui
t boa
rd
•
R
ew
rit
e
da
ta
us
ing t
he c
or
re
ct
m
em
or
y c
ar
d
•
C
hec
k
fo
r o
bs
tr
uc
tion
on
t
he
fa
n/
m
ot
or
•
V
er
ify
t
he
in
put
v
olt
ag
e
at
t
he
m
ot
or
•
C
he
ck
wi
ring
o
r t
igh
te
n wi
rin
g c
on
ne
ct
ion
s i
f ne
ed
ed
•
R
epl
ac
e c
irc
ui
t bo
ar
d
or
m
ot
or
•
C
he
ck
wi
ring
o
r t
igh
te
n wi
rin
g c
on
ne
ct
ion
s i
f ne
ed
ed
•
V
er
ify
t
he
in
put
v
olt
ag
e
at
t
he
m
ot
or
•
R
epl
ac
e c
irc
ui
t bo
ar
d
or
m
ot
or
•
C
or
re
ct m
oto
r i
ns
ta
lla
tio
n
•
P
opu
la
te
s
har
ed
da
ta
s
et
us
ing m
em
or
y c
ar
d.
•
C
hec
k
fo
r o
bs
tr
uc
tion
on
t
he
fa
n/
m
ot
or
/d
uc
tw
or
k,
c
lea
n f
ilt
er
s
•
V
er
ify
t
he
in
put
v
olt
ag
e
at
t
he
m
ot
or
•
C
hec
k
w
iri
ng
•
R
ep
lac
e m
ot
or
C
o
rre
ct
iv
e
A
ct
io
n
s
