Stryker XPRT 2950 Manuel D'utilisation page 67

SERVICE CODES (CONTINUED)
Service Event Code
12VPowerFailure 101
CorruptedMemory 103
Sensor Select Solenoid 104-0 The compressor is on 100% for an
Valve
Sensor Select Solenoid 104-1 The system did not detect a difference
Valve
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Service Information
Description
12 volt supply drops below 10 volts .
Controller has detected corrupted
memory .
extended time while filling a rotation
cell . This error can also occur if the
rotation rate parameters are changed
without stopping therapy first .
in pressure between the two rotation
circuits . Both rotation cells are filling
at the same time .
2950-109-005 REV B
Problem Area
1 . Check for 24 to 30 volts DC non filtered
at the power PC board between J4 pin
3 and J4 pin 4 and also at control PC
board between TB1 pin 2 and TB1
pin 3 .
2 . Check for 12 VDC between TB9 and
TB1 pin 2 .
3 . Replace control PC board .
1 . Replace control PC board .
1 . Check sensor select solenoid valve,
item 69 in the head box . If this valve
is not working, a rotation cell may be
filling but the pressure transducer is
monitoring the wrong cell . During the
diagnostic test, the left rotation cell
(patient perspective) will fill first and
the pressure can be monitored on the
display . If the left cell is inflating but
the pressure display does not change,
the valve is stuck in the energized
state . Continue to monitor during the
right cell inflation, if the display does
not change, the valve is stuck in the
de-energized state .
2 . 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 .
3 . Check for kinked supply tubing in
support surface and replace with wire
reinforced supply tubing and clamps
if necessary .
4 . Check for plugged bulkhead fitting at
foot box and replace if necessary .
5 . Check main valve marked "M" . If the
main valve is sticking, the air flow will
be routed to the low air loss tubing
instead of the cell assemblies .
6 . Check CPR engagement and "O"
rings .
1 . Check CPR engagement and "O"
rings .
2 . Check for leakage path between the
rotation cells .
3 . This alarm is more susceptible when
the rotation rate is set very low, there
is patient movement or no patient on
the support surface .
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