39
Ductless
Fume
Hoods
Connection
Problem
•
Turn
off
the
cabinet.
•
See
Component
Layout
to
locate
the
relay
board,
fluorescent
ballast,
and
connector
C
inside
electrical
box.
•
Check
for
any
loose
or
bad
connection
between
relay
board,
fluorescent
lamp
ballast,
and
female
connector
C.
•
See
figure
8
‐
1
to
locate
terminal
J
13
on
relay
board,
check
tightness
of
2
cables
connected
to
J
13.
•
For
connector
C,
disconnect
the
male
side
from
electrical
box,
then
check
male
and
female
side
for
any
bad
connection.
•
Check
also
connection
of
the
lamp
holder
(see
figure
8
‐
3).
Faulty
relay
or
fuse
•
Turn
off
the
cabinet.
•
See
Component
Layout
to
locate
the
relay
board.
•
Check
relay
LS7
and
fuse
F7
on
the
relay
board.
See
Figure
8
‐
4.
•
If
fuse
F7
is
blown,
replace
with
F5
(spare).
•
On
terminal
J13,
check
the
NO
to
Common
and
NC
to
Common
circuits
by
checking
continuity.
•
If
the
NO
to
Common
and
NC
to
Common
contacts
are
not
correct,
replace
the
Relay
Board.
•
If
the
NO
to
Common
and
NC
to
Common
contacts
are
correct,
proceed
to
the
next
step.
Problem
9:
Electrical
socket
always
OFF
Cause
Corrective
Action
Connection
Problem
•
Turn
off
the
cabinet.
•
See
Component
Layout
to
locate
the
relay
board
and
connector
B.
•
Check
any
loose
or
bad
connection
between
relay
board
and
female
connector
B.
•
See
Figure
9
‐
1
to
locate
terminal
J
6
on
relay
board,
check
tightness
of
2
cables
connected
to
J
6.
•
For
connector
B,
disconnect
the
male
side
from
electrical
box,
and
then
check
male
and
female
side
for
any
loose
or
wrong
connection.
•
Check
also
connection
on
electrical
socket.
It
is
located
inside
the
work
zone.
Figure
8
‐
3
Figure
8
‐
4
Summary of Contents for Ascent max
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