Huntleigh AlphaBed, Service Manual

Page: 70 / 94

2 Low Pressure fault indicated (checks without dismantling the pump)
Check the following before dismantling the pump unit.
Perform the pressure, flow and low pressure alarm tests as specified in Chap. 5 (Testing). If the
results are satisfactory, the mattress is at fault.
Note : All testing must be done when pumps are warm, ie. they have been running with closed ports
for at least 1 hour.
Check:
2.1 All tubing connections on pump and mattress are securely fastened and snap locked into place.
2.2 Check that the rapid deflate stopper or CPR is fitted correctly (Refer to Mattress Service
Manual, SER0005).
Chap 4 Issue 2
Page 2 SER0004 Nov 2001
Troubleshooting Mini Pump Service Manual
Problem Possible Cause Action
Mains/Power Fail indicator
remains illuminated but
there is no audible alarm.
Applicable to:
ALR 01-10
ALX 01-10
ALS 01-10
There has been a mains/power
failure but power has been restored.
Check if electrical plug is
correctly fitted and if pump is
running correctly.
Pump is very noisy and/or is
causing excessive vibration.
Applicable to all pumps.
System is damaged or dirty. 1. Check compressor
mounts for wear
(Refer to Ch 3, Pg 13).
2. Check compressor is
not loose on its
mounting plate
(Refer to Ch 3, Pg 17).
3. Check the compressor
bellows are not split
(Refer to Ch 3, Pg 21).
Pump not operating
Applicable to all pumps.
1. Pump run switch not on. Switch on.
2. Plug not inserted correctly. Check.
3. Fuse blown. Replace the fuse (Refer to
Ch 3, Pg 43).
4. Loss of output pressure. Refer to Section 2 and 3
below.
All indicators/lights remain
illuminated on initial
switch-on.
Applicable to:
ALR 01-10
ALX 01-10
ALS 01-10
Internal fault Test the pump (Refer to
Ch 5).
Check PCB.
Table 29 - Troubleshooting (continued)