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SERVICE CODES (CONTINUED)
Service Event
ProductionTestLeak
StepperOverCurrent
ValvesOverCurrent
PercOverCurrentAlarm
FootOverTempService
HeadOverTempService
OverPressureReading
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1-62
Service Information
Code
Description
92
Cell under diagnostic test did not
inflate to 50 mmHg pressure within
3 minutes . This message will only
occur during a diagnostic test from
the service screen .
95
An over-current has been detected on
the stepper motor drive circuit .
96
An over-current has been detected in
one of the solenoid valves .
97
An over-current has been detected on
the percussion motor .
98
Two or more FootEndHigh alarm code
70 occurred within 24 hours .
99
Two or more HeadEndHigh alarm
code 72 occurred within 24 hours .
100
Excessive pressure was sensed in
an air cell that is not intended to be
filling .
2950-109-005 REV B
Problem Area
1 .
Check for tubing leaks at connections .
2 .
Check for leaks in cells .
3 .
Check CPR engagement and "O"
rings .
4 .
Check for compressor output of 28 to
32 lpm during initial inflation . This can
be tested by connecting a flow meter
in line at foot box, pulling a CPR plug
and holding CPR limit switch engaged .
5 .
Check for kinked supply tubing in
support surface and replace with wire
reinforced supply tubing and clamps
if necessary .
6 .
Check for plugged bulkhead fitting at
foot box and replace if necessary .
1 .
Check for cut or shorted wires
between the control PC board at TB10
and the stepper motor .
2 .
Replace rotary valve assembly .
1 .
Check for cut or shorted wires
between the control PC board at
TB12 or TB14 and one of the solenoid
valves .
2 .
Replace solenoid valve .
1 .
Check for cut or shorted wires
between the control PC board at TB2
and the percussion motor .
2 .
Replace percussion motor .
1 .
Refer
to
alarm
code
troubleshooting steps .
2 .
The service log must be reset to clear
this alarm .
1 .
Refer
to
alarm
code
troubleshooting steps .
2 .
The service log must be reset to clear
this alarm . To reset this alarm; open
the service screen, reset the service
log and cycle the power to the support
surface .
1 .
Rotary valve stopped at the wrong
position and is filling the wrong cell .
2 .
Check tubing for proper connections .
70
for
72
for
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