19
TROUBLESHOOTING
EE
No di
spl
ay
(E
E
dis
play
is
E
MG
mode)
• N
o pow
er s
uppl
y t
o I
D bl
ow
er /
no
24 v
olt
pow
er t
o P
CB
• B
low
n f
us
e or
ci
rcui
t br
eak
er
• P
CB
has
an i
nter
nal
faul
t
•
M
anual
di
sc
onnec
t s
wi
tch O
FF
•
N
o pow
er s
uppl
y t
o I
D bl
ow
er /
no 24 v
olt
pow
er t
o P
CB
•
B
low
n f
us
e or
faul
ty c
irc
uit
br
eak
er
•
C
ont
rol
boar
d has
int
ernal
faul
t
•
As
sur
e 2
08
/2
30
vo
lt a
nd 2
4 v
olt
po
we
r t
o bl
ow
er a
nd c
ont
ro
l bo
ar
d.
•
Che
ck
fus
e F
2U
on c
ont
ro
l bo
ar
d
•
Che
ck
fo
r po
ss
ibl
e s
ho
rt i
n 2
08
/2
30
vo
lt a
nd 2
4 v
olt
ci
rcui
ts.
Re
pa
ir a
s ne
ce
ss
ar
y.
•
Re
pla
ce
the
co
ntr
ol bo
ar
d.
Eb
E_
Eb
Sel
ec
ting "
no heat
er k
it"
and
rec
eiv
ing el
ec
tric
heat
dem
and
•
N
o heat
er k
it s
elec
ted
•
S
elec
t t
he v
ali
d heat
er k
it on t
her
mos
tat
•
V
ali
d di
p s
wi
tch s
elec
tion (
heat
er k
it s
elec
tion out
of
range of
the uni
t c
onf
igur
ati
on)
Ed
E_
Ed
Heat
er K
it di
p s
wi
tches
not
set
proper
ly
•
Inv
ali
d heat
er k
it s
elec
ted
•
S
et c
orr
ec
t di
p s
wi
tches
E5
E_
E5
Fus
e O
pen
•
F
us
e (
F1U
) is
bl
ow
n
•
C
onnec
tor
TB
10 i
s open
•
R
epl
ac
e f
us
e
•
C
hec
k w
iring t
o A
UX
al
arm
, heat
er k
it, c
om
muni
cat
ion c
onnec
tion.
•
R
epl
ac
e t
he c
ont
rol
boar
d
Af
ter
rec
ov
eri
ng t
he s
ys
tem
, E
5 w
ill s
till
b
e di
spl
ay
ed on t
he i
ndoor
P
CB
(ab
out
30 s
ec
onds
). B
LO
W
N F
US
E w
ill s
till
b
e di
spl
ay
ed on t
he t
her
mos
tat
w
ithi
n 45 s
ec
onds
.
T
hey
w
ill b
e c
lear
ed aut
om
ati
cal
ly.
EF
E_
EF
Aux
iliar
y S
wi
tch O
pen
•
H
igh w
ater
lev
el i
n t
he ev
apor
ati
on c
oil
•
The c
onnec
ted al
arm
dev
ice i
s ac
tiv
ated
•
A
ux
iliar
y A
lar
m t
erm
inal
s (
TB
4, T
B5)
ar
e open
•
C
hec
k w
ater
lev
el i
n dr
ain pan
•
C
hec
k al
arm
dev
ice.
•
C
los
e A
ux
iliar
y t
erm
inal
s T
B4 and T
B5 i
f not
us
ed
Af
ter
rec
ov
eri
ng t
he s
ys
tem
, E
F w
ill s
till
b
e di
spl
ay
ed on t
he i
ndoor
P
CB
(ab
out
30 s
ec
onds
). A
UX
ILI
AR
Y C
ON
TA
CT
S O
PE
N w
ill s
till
b
e di
spl
ay
ed on t
he t
her
mos
tat
w
ithi
n 45 s
ec
onds
. T
hey
w
ill b
e c
lear
ed aut
om
ati
cal
ly.
d0
E_d0
Dat
a not
on N
etw
ork
•
N
o s
har
ed dat
a on t
he net
wor
k
•
P
opul
ate s
har
ed dat
a s
et us
ing m
em
ory
car
d.
d1
E_d1
Inv
ali
d D
ata on N
etw
ork
•
W
rong s
har
ed dat
a on t
he net
wor
k
•
P
opul
ate s
har
ed dat
a s
et us
ing m
em
ory
car
d.
d4
E_d4
Inv
ali
d M
em
ory
C
ard D
ata
•
W
rong m
em
ory
car
d dat
a
•
R
epl
ac
e c
irc
uit
boar
d
•
R
ew
rite dat
a us
ing t
he c
orr
ec
t m
em
ory
car
d
b0
E_b0
Bl
ow
er M
otor
not
runni
ng
•
F
an/
mot
or obs
truc
tion
•
P
ow
er i
nter
rupt
ion (
low
vol
tage)
•
Inc
orr
ec
t /
loos
e w
iring
•
C
hec
k f
or obs
truc
tion on t
he f
an/
mot
or
•
V
eri
fy t
he i
nput
vol
tage at
the m
otor
•
C
hec
k w
iring or
tight
en w
iring c
onnec
tions
if needed
•
R
epl
ac
e c
irc
uit
boar
d or
m
otor
b1
E_b1
Bl
ow
er M
otor
C
om
muni
cat
ion er
ror
•
Inc
orr
ec
t /
loos
e w
iring
•
P
ow
er i
nter
rupt
ion (
low
vol
tage)
•
C
hec
k w
iring or
tight
en w
iring c
onnec
tions
if needed
•
V
eri
fy t
he i
nput
vol
tage at
the m
otor
•
R
epl
ac
e c
irc
uit
boar
d or
m
otor
b2
E_b2
Bl
ow
er M
otor
H
P M
ism
atc
h
•
Inc
orr
ec
t s
ize m
otor
•
Inv
ali
d s
har
ed dat
a
•
C
orr
ec
t m
otor
ins
tal
lat
ion
•
P
opul
ate s
har
ed dat
a s
et us
ing m
em
ory
car
d.
b3
E_b3
Bl
ow
er M
otor
oper
ati
ng i
n P
ow
er,
Tem
p or
S
peed Li
mi
ting c
ondi
tions
•
F
an/
mot
or obs
truc
tion or
bl
oc
ked f
ilter
s
•
P
ow
er i
nter
rupt
ion (
low
vol
tage)
•
Inc
orr
ec
t w
iring
•
B
loc
kage i
n t
he ai
rflow
(duc
tw
ork
) or
duc
tw
ork
under
siz
ed
•
C
hec
k f
or obs
truc
tion on t
he f
an/
mot
or/
duc
tw
ork
, c
lean f
ilter
s
•
V
eri
fy t
he i
nput
vol
tage at
the m
otor
•
C
hec
k w
iring
•
R
epl
ac
e m
otor
Co
rre
cti
ve
A
cti
on
s
Erro
r
Co
de
De
sc
rip
tio
n
Po
ssi
ble
C
au
se
s
PCB L
ED Di
sp
lay
