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49
SERVICING
PCBHR101-103
PBBGR101-102
Sy
m
pt
om
s o
f A
bno
rm
al
O
pe
ra
tio
n
(L
eg
ac
y & C
omf
or
tN
et™
T
he
rm
os
ta
t)
D
ia
gn
os
tic
/S
ta
tu
s L
ED
C
od
es
Fa
ul
t
D
es
cri
pt
io
n
C
omf
or
tN
et
™
The
rm
os
ta
t O
nl
y
Po
ssi
bl
e C
au
se
s
C
orrect
iv
e A
ct
io
ns
N
ote
s & C
au
tio
ns
G
re
en
Y
ello
w
Red
Re
d Y
1
Me
ssa
ge
Code
•
V
er
y l
on
g r
un t
im
e.
•
Fo
ur
co
ns
ec
ut
iv
e co
m
pr
es
so
r p
ro
tect
or
tri
ps
w
ith
a
ver
ag
e r
un
ti
m
e b
et
w
een
tri
ps
gr
ea
te
r t
ha
n 3
ho
ur
s.
•
Co
m
pr
es
sor
ope
ra
ting
a
t hi
gh
spe
ed
an
d o
ut
door
fa
n ope
ra
ting
a
t l
ow
spe
ed
•
In
te
gr
at
ed
co
nt
ro
l m
od
ul
e
di
agnos
tic
/st
at
us
L
ED
’s
di
sp
la
y t
he
ind
ic
at
ed c
ode
.
O
FF
1 F
la
sh
O
FF
O
N
if
c
all
pr
es
en
t;
O
FF
if n
o
cal
l
•
Low
S
ide
F
aul
t.
LOW
S
IDE
FA
U
LT
01
•
Lo
w
re
fri
ge
ra
nt
c
ha
rge
.
•
Re
str
ic
tio
n in
li
qu
id
lin
e.
•
In
doo
r bl
ow
er
m
ot
or
fa
ilu
re
.
•
In
do
or
th
er
m
os
ta
t s
et
ex
tre
me
ly
lo
w
.
•
V
er
ify
re
fri
ge
ra
nt
ch
ar
ge
; ad
ju
st as
need
ed
.
•
Ch
eck
fo
r r
es
tri
ct
ed
liq
ui
d lin
e;
rep
ai
r/r
ep
lace as
need
ed
.
•
Ch
ec
k
in
do
or
b
low
er
m
ot
or
; r
ep
ai
r/r
ep
lace
as
n
eed
ed
.
•
Ch
ec
k i
ndo
or
th
er
m
os
ta
t s
ett
in
g.
•
Tu
rn
pow
er
O
FF
p
rior
to r
epa
ir.
•
Fa
ult w
ill
c
le
ar
a
fte
r 3
0
co
ns
ec
ut
ive
no
rm
al
cy
cl
es
.
•
Fa
ul
t m
ay
be
c
le
ar
ed by
cyc
lin
g 2
4V
A
C to
co
nt
ro
l.
•
Rep
lace w
ith
co
rrect
rep
lace
m
en
t p
ar
t(s
).
•
Co
m
pre
ss
or a
nd
o
ut
do
or
fa
n a
re
o
ff.
•
Th
er
m
os
ta
t de
m
an
d
is pr
es
en
t.
•
In
te
gr
at
ed
co
nt
ro
l m
od
ul
e
di
agnos
tic
/st
at
us
L
ED
’s
di
sp
la
y t
he
ind
ic
at
ed c
ode
.
ON
1 F
la
sh
O
FF
O
N
if
c
all
pr
es
en
t;
O
FF
if n
o
cal
l
•
Lo
w
P
re
ss
ure
CO
T
rip
.
LP
S O
PE
N
01
•
Lo
w
re
fri
ge
ra
nt
c
ha
rge
.
•
Re
str
ic
tio
n in
li
qu
id
lin
e.
•
In
doo
r bl
ow
er
m
ot
or
fa
ilu
re
.
•
In
do
or
th
er
m
os
ta
t s
et
ex
tre
me
ly
lo
w
.
•
V
er
ify
re
fri
ge
ra
nt
ch
ar
ge
; ad
ju
st as
need
ed
.
•
Ch
eck
fo
r r
es
tri
ct
ed
liq
ui
d lin
e;
rep
ai
r/r
ep
lace as
need
ed
.
•
Che
ck
in
do
or
b
low
er
m
ot
or
; r
ep
ai
r/r
ep
lace
as
n
eed
ed
.
•
Ch
eck
lo
w
p
res
su
re
sw
itc
h;
rep
ai
r/r
ep
lace
as
n
eed
ed
.
•
Ch
ec
k i
ndo
or
th
er
m
os
ta
t s
ett
in
g.
•
Tu
rn
pow
er
O
FF
p
rior
to r
epa
ir.
•
Rep
lace w
ith
co
rrect
rep
lace
m
en
t p
ar
t(s
).
•
Co
m
pre
ss
or a
nd
o
ut
do
or
fa
n a
re
o
ff.
•
Low
pr
es
su
re
sw
itc
h t
rip
3
ti
m
es
w
ith
in
sa
m
e t
her
m
os
tat
d
em
an
d.
•
Th
er
m
os
ta
t de
m
an
d
is pr
es
en
t.
•
In
te
gr
at
ed
co
nt
ro
l m
od
ul
e
di
agnos
tic
/st
at
us
L
ED
’s
di
sp
la
y t
he
ind
ic
at
ed c
ode
.
•
Co
m
fo
rtN
et™
th
er
m
os
ta
t “
Ca
ll
fo
r
Ser
vi
ce” i
co
n i
llu
m
in
at
ed
.
•
Co
m
fo
rtN
et™
th
er
m
os
ta
t s
cr
oll
s
“Ch
eck
A
ir C
on
di
tio
ne
r” o
r “
Ch
eck
H
eat
P
um
p”
m
es
sag
e.
ON
1 F
la
sh
ON
O
N
if
c
all
pr
es
en
t;
O
FF
if n
o
cal
l
•
LP
CO
L
oc
ko
ut
(3 T
rips
).
LPS
LOC
KOUT
01
•
Lo
w
re
fri
ge
ra
nt
c
ha
rge
.
•
Re
str
ic
tio
n in
li
qu
id
lin
e.
•
In
doo
r bl
ow
er
m
ot
or
fa
ilu
re
.
•
In
do
or
th
er
m
os
ta
t s
et
ex
tre
me
ly
lo
w
.
•
V
er
ify
re
fri
ge
ra
nt
ch
ar
ge
; ad
ju
st as
need
ed
.
•
Ch
eck
fo
r r
es
tri
ct
ed
liq
ui
d lin
e;
rep
ai
r/r
ep
lace as
need
ed
.
•
Ch
ec
k
in
do
or
b
low
er
m
ot
or
; r
ep
ai
r/r
ep
lace
as
n
eed
ed
.
•
Ch
eck
lo
w
p
res
su
re
sw
itc
h;
rep
ai
r/r
ep
lace
as
n
eed
ed
.
•
Ch
ec
k i
ndo
or
th
er
m
os
ta
t s
ett
in
g.
•
Tur
n p
ow
er
O
FF p
rio
r
to r
epa
ir.
•
M
us
t c
le
ar
fa
ult
b
y
cy
clin
g 2
4V
A
C to
co
nt
ro
l.
•
Rep
lace w
ith
co
rrect
rep
lace
m
en
t p
ar
t(s
).