Roberts Gorden UltraVac NEMA 4 - Manual (Page 43)

SECTION 9: T ROUBLESHOOTING
37
SECTION 9: TROUBLESHOOTING
FIGURE 24: Troubleshooting Flow Chart
C
ont
act y
o
u
r
R
OBER
TS GORDO
N ®
Independent Distr
ibu
to
r.
On the Man
u
al O
verr
ide
scr
een (Alt+M), set the
p
u
mp st
at
u
s t
o
O
N
. Does
the p
u
mp light on the
contr
o
ller come on?
Ye
s
N
o
V
er
ify comm
u
nication
w
ir
ing
b
et
w
een PC and contr
oller
.
V
er
ify
w
ir
ing
b
et
w
een sensor
and contr
o
ller
. V
er
ify shield
w
ir
es ar
e t
w
ist
ed and/or
gr
o
u
nded.
Does the p
u
mp
light on the contr
oller t
u
rn
on?
N
o
Ye
s
N
o
Ar
e c
u
rr
ent conditions
b
eing
contin
u
all
y
u
pdat
ed on the
Boar
d St
at
u
s scr
een?
R
ectify
w
ir
ing
b
et
w
een 24
V
contr
o
l
b
oar
d po
w
er
s
u
ppl
y
and 24
V
contr
ol
b
oar
d
po
w
er inp
u
t.
Ye
s
N
o
Is ther
e 24
V
ac at the 24
V
contr
o
l
b
oar
d po
w
er inp
u
t?
Chec
k
cir
c
u
it
b
reak
er and
contr
oller po
w
er s
u
ppl
y.
R
eplace 24
V
po
w
er 1
A f
u
se
on r
e
la
y
b
oar
d.
See Section
8
.
Ye
s
N
o
Is ther
e 1
20
V
at the r
e
la
y
b
oar
d
po
w
er inp
u
t t
e
rminals
L1 and L2? C
ont
act y
o
u
r
R
OBER
TS GORDO
N ®
Independent Distr
ibu
to
r.
Ar
e shield
w
ir
es fr
om R
S-4
8
5
comm
u
nication
bu
s
w
ir
ing and
V
FD 0-1
0
V
signal
w
ir
ing
corr
ectl
y t
w
ist
ed and/or
gr
o
u
nded? Ye
s
S
T
AR
T
On the Man
u
al O
verr
ide
scr
een (Alt+M), set the p
u
mp
st
at
u
s t
o
"A
u
to".
Does the p
u
mp go on?
N
o
Ye
s
N
o
P
ress the r
eset
bu
tt
on on
the contr
ol
b
oar
d.
Is the
red "R
U
N
" light
b
linking
.
Is the
bu
lb
f
or the p
u
mp light
on the contr
oller
bu
rnt o
u
t?
N
o
Ye
s
N
o
Is the r
e
d
“R
U
N
” LED on
the contr
ol
b
oar
d
b
linking?
N
o
Ye
s
Is ther
e 24
V
ac acr
oss the
24
V
contr
ol
b
oar
d po
w
er
s
u
ppl
y
t
e
rminals on the
rela
y
b
oar
d?
Ye
s
N
o
Is the g
reen po
w
er LED on
the contr
ol
b
oar
d lit?
Is the 24
V
ac s
w
itch on the
re
la
y
b
oar
d
on?
Ye
s
Is the po
w
er light
bu
lb
bu
rnt o
u
t?
N
o
N
o
Ye
s
Is the p
u
mp light on the
contr
o
ller lit?
Ye
s
N
o
Ar
e p
u
mp and/or
bu
rner
s
tu
rn
ing on and of
f err
aticall
y
?
N
o
Ye
s
Is the po
w
er light on the
contr
o
l panel lit?
Ye
s
Set the setpoint a
b
o
ve the
z
one t
emper
at
u
re.
V
er
ify
sched
u
ling times and adj
u
st
the corr
ect setpoint (occ
u
pied
or set
b
ac
k).
V
er
ify z
one
temper
at
u
re
sensor r
eading
on the Boar
d St
at
u
s scr
een.
Does the p
u
mp t
u
rn
O
N
?
N
o
Ye
s
Ye
s
Ye
s
N
o
N
o
N
o
Ye
s