Manuale d'Uso e Installazione per ESC - Rev.D (ITA-ENG)
8/8
13.
TROUBLESHOOTING
TYPE
OF
PROBLEM
WHAT
TO
CHECK
WHAT
TO
DO
The
fan
always
runs
at
full
speed
Check
if
the
sensor
has
been
damaged
Disconnect
the
NTC
sensor
from
the
ESC
(connector
type
AMP
ss1,5).
If
the
fan
stops,
replace
the
sensor
and
check
the
grounding
of
the
heat
exchanger
and
of
the
system.
Disconnect
the
NTC
sensor
from
the
ESC
(connector
type
AMP
ss1,5).
If
the
fan
does
not
stop
then
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan,
then
to
the
sensor
and
finally
to
the
power
supply.
The
fan
does
not
work
Check
if
the
ESC
is
in
SELFPROTECTION
Disconnect
the
power
supply
from
the
ESC
and
wait
30
seconds
,
reconnect
and
verify
that
the
unit
works,
if
necessary
connect
together
the
two
contacts
of
the
NTC
(side
ESC)
and
verify
that
the
fan
starts
with
the
soft
start.
If
it
does
not
return
to
work,
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan
then
to
the
sensor
and
finally
to
the
power
supply.
Check
if
there
is
a
foreign
body
that
blocks
the
fan
If
there
is
a
foreign
body
blocking
the
fan,
remove
it,
check
that
the
fuse
is
intact
then
disconnect
the
ESC
from
the
power
supply
and
wait
30
seconds
,
reconnect
and
verify
that
the
unit
works,
if
necessary
connect
together
the
two
contacts
of
the
NTC
(side
ESC)
and
verify
that
the
fan
starts
with
the
soft
start.
If
it
does
not
return
to
work,
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan
then
to
the
sensor
and
finally
to
the
power
supply.
If
there
is
not
a
foreign
body
blocking
the
fan,
check
that
the
fuse
is
intact,
then
disconnect
the
power
from
the
ESC
and
wait
30
seconds
,
reconnect
and
verify
that
the
unit
works,
if
necessary
connect
together
the
two
contacts
of
the
NTC
(side
ESC)
and
verify
that
the
fan
starts
with
the
soft
start.
If
it
does
not
return
to
work,
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan
then
to
the
sensor
and
finally
to
the
power
supply.
Check
the
fuse
system
If
the
protection
fuse
is
fused
replace
it
with
a
new
one,
with
size
specified
by
the
machine
manufacturer.
If
the
protection
fuse
is
intact
disconnect
the
ESC
from
the
power
supply
and
wait
30
seconds,
reconnect
and
verify
that
the
unit
works,
if
necessary
connect
together
the
two
contacts
of
the
NTC
(side
ESC)
and
verify
that
the
fan
starts
with
the
soft
start.
If
it
does
not
return
to
work,
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan
then
to
the
sensor
and
finally
to
the
power
supply.
Check
along
the
wiring
harness
if
all
the
connectors
are
properly
inserted
and
undamaged
If
one
or
more
connectors
are
not
inserted
properly
disconnect
the
power
supply
from
the
ESC
and
wait
30
seconds,
restore
the
connection,
check
that
the
protection
fuse
is
intact,
then
reconnect
and
make
sure
the
unit
works,
if
necessary
connect
together
the
two
contacts
of
the
NTC
(side
ESC)
and
verify
that
the
fan
starts
with
the
soft
start.
If
it
does
not
return
to
work,
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan
then
to
the
sensor
and
finally
to
the
power
supply.
If
all
the
connectors
are
connected
correctly,
disconnect
the
power
supply
from
the
ESC
and
wait
30
seconds
,
reconnect
and
make
sure
the
unit
works,
if
necessary
connect
together
the
two
contacts
of
the
NTC
(side
ESC)
and
verify
that
the
fan
starts
with
the
soft
start.
If
it
does
not
return
to
work,
replace
the
ESC;
during
assembly
of
the
new
component,
connect
the
ESC
to
the
fan
then
to
the
sensor
and
finally
to
the
power
supply.
CONTACT
:
COMEX EUROPE srl
Via A. GRAMSCI 12,
42015 CORREGGIO (RE) ITALIA
Tel: +39 0522 631.433
Fax: +39 0522 637.603
Email:
Web
Site:
www.comex-europe.com
