Trane IntelliPak CGAF Series, Programming, Troubleshooting Manual

Page: 55 / 68

55
System Testing & Troubleshooting
DIAGNOSTIC DISPLAYED
REASON FOR DIAGNOSTIC
UCM’
S
REACTION
R
ESET REQUIRED
G
B
A
S
0
-5
V
DC M
o
d
u
le
Co
m
m
Fa
ilu
re
P
roblem
: T
h
e C
G
M
has
los
t
c
o
m
m
u
n
ic
a
ti
o
n
s
w
ith
th
e
G
B
A
S
M
odule.
C
h
ec
k
: C
h
ec
k
f
ield/
unit
w
ir
ing
bet
w
een C
G
M
and G
B
A
S
.
T
h
e
C
G
M
h
a
s l
o
st
co
m
m
u
n
ica
ti
o
n
s
w
it
h
t
h
e G
B
A
S
M
o
dule.
T
h
e U
C
M
w
ill init
iat
e
t
h
e f
o
llow
ing
ac
ti
ons
;
a.
I
f t
h
e D
e
m
and Lim
it
input
w
a
s
c
lo
s
e
d
p
ri
o
r to
c
o
m
m
u
n
ic
a
ti
o
n
s
l
o
s
s
, th
e
n
th
e
D
e
m
a
n
d
L
im
it
c
o
m
m
a
nds
is
s
u
ed t
o
t
h
e
C
o
m
p
re
s
s
or
S
taging f
u
nc
ti
on
w
ill be c
a
nc
elled.
b.
I
f any
of
t
he G
B
A
S
s
e
tp
oint
c
o
nt
ro
l par
am
et
er
s
ar
e t
h
e
H
I-
s
e
le
c
te
d
se
tp
o
in
t so
u
rce
s,
t
h
en t
hos
e s
e
tp
oint
s
w
ill r
e
v
e
rt
t
o
t
h
e def
ault
H
I s
e
tpoint
s
.
c
. A
n
y
a
c
ti
v
e
G
B
A
S
o
u
tp
u
t
c
o
n
tr
o
l p
a
ra
m
e
te
rs
w
ill
b
e
ignor
ed.
d
. A
fa
ils
a
fe
fu
n
c
ti
o
n
i
n
th
e
G
B
A
S
m
o
dule w
ill c
aus
e all G
B
A
S
out
p
ut
s
t
o
be z
e
ro
ed and
de-
e
ner
g
iz
ed.
(P
A
R
) A
n
a
u
to
m
a
ti
c
r
e
s
e
t o
c
c
u
rs
af
te
r c
o
m
m
u
nic
a
ti
on has
been
re
s
tor
ed.
G
B
A
S
0
-5
V
DC M
o
d
u
le
Co
m
m
Fa
ilu
re
P
roblem
: T
h
e C
G
M
has
los
t
c
o
m
m
u
n
ic
a
ti
o
n
s
w
ith
th
e
G
B
A
S
M
odule.
C
h
ec
k
: C
h
ec
k
f
ield/
unit
w
ir
ing
bet
w
een C
G
M
and G
B
A
S
.
T
h
e
C
G
M
h
a
s l
o
st
co
m
m
u
n
ica
ti
o
n
s
w
it
h
t
h
e G
B
A
S
M
o
dule.
T
h
e U
C
M
w
ill init
iat
e
t
h
e f
o
llow
ing
ac
ti
ons
;
a.
I
f t
h
e D
e
m
and Lim
it
input
w
a
s
c
lo
s
e
d
p
ri
o
r to
c
o
m
m
u
n
ic
a
ti
o
n
s
l
o
s
s
, th
e
n
th
e
D
e
m
a
n
d
L
im
it
c
o
m
m
a
nds
is
s
u
ed t
o
t
h
e
C
o
m
p
re
s
s
or
S
taging f
u
nc
ti
on
w
ill be c
a
nc
elled.
b.
I
f any
of
t
he G
B
A
S
s
e
tp
oint
c
o
nt
ro
l par
am
et
er
s
ar
e t
h
e
H
I-
s
e
le
c
te
d
se
tp
o
in
t so
u
rce
s,
t
h
en t
hos
e s
e
tp
oint
s
w
ill r
e
v
e
rt
t
o
t
h
e def
ault
H
I s
e
tpoint
s
.
c
. A
n
y
a
c
ti
v
e
G
B
A
S
o
u
tp
u
t
c
o
n
tr
o
l p
a
ra
m
e
te
rs
w
ill
b
e
ignor
ed.
d
. A
fa
ils
a
fe
fu
n
c
ti
o
n
i
n
th
e
G
B
A
S
m
o
dule w
ill c
aus
e all G
B
A
S
out
p
ut
s
t
o
be z
e
ro
ed and
de-
e
ner
g
iz
ed.
(P
A
R
) A
n
a
u
to
m
a
ti
c
r
e
s
e
t o
c
c
u
rs
af
te
r c
o
m
m
u
nic
a
ti
on has
been
re
s
tor
ed.