Huntleigh Flowtron AC550, Service Manual

Page: 22 / 42

247901 3-4 Issue 1
March 1998
MESSAGE User
Mode
Service Mode
Fault
Detection
Protocol
Possible Causes
User
Faults
Possible Causes
Pump
Faults
Effect
Reset Method
HI
HI
A
high
speed
inflation
event
of
less
than
0.5
sec.
duration
from
5mmHg
to
>24mmHg
is
detected
in
the
pump
transducer. If
10
similar
events
are
detected
in
succession
on
the
same
output,
the
pump
will
alarm.
As
each
event
is
detected,
a
HI
message
briefly
appears
on
the
display,
(but
alarm
is
not
activated).
A
kinked
supply
tube. The
supply
tube
disconnected
at
the
pump
outlet
Single
garment
in
use,
without
single
leg
button
being
activated.
Kinked
tube
-
rotary
valve
to
outlet
connector.
No
inflation
of
the
garment
1
normal
cycle,
or
power
reset
Lo
L1
A
low
pressure
event
comprising
of
no
pressure
greater
than
27mmHg
over
a
9-second
period,
from
an
initial
inflation
point
of
5
mmHg.
If
10
similar
events
are
detected
in
succession
on
the
same
output,
the
pump
will
alarm.
As
each
event
is
detected,
a
Lo
message
briefly
appears
on
the
display,
(but
alarm
is
not
activated).
a)
A
large
leak
in
the
garment,
hose.
OR b)
The
supply
tube
disconnected
at
the
garment
connector.
OR c)
Loose
fitting
thigh
length
garment
Kinked
tube
to
pressure
transducer
OR Rotary
valve
leak
OR Leaking
tube
-
rotary
valve
to
outlet
connector OR Low
output
compressor.
No
inflation
of
the
garment
OR The
garment
may
not
be
at
the
therapeutic
pressure
for
the
required
time
1
normal
cycle,
or
power
reset.
Lo
L3
A
slow
inflation
event
comprising
of
a
pressure
rise
no
greater
than
24mmHg
in
a
9
sec.
period,
from
an
initial
inflation
point
of
5mmHg.
If
10
similar
events
are
detected
in
succession
on
the
same
output,
the
pump
will
alarm.
As
each
event
is
detected,
a
Lo
message
briefly
appears
on
the
display,
(but
alarm
is
not
activated).
1
normal
cycle,
or
power
reset.