GE Datex-Ohmeda Aisys Carestation Reference Manual page 253

Error Log Entry
Action/Troubleshooting
POWER SUPPLY 75C
Check / Clean cooling fan.
PRESS SNSOR1
FAILURE
Zero the Mixer pressure transducers.
Replace Mixer.
PROP VALVE DRIVE
SENSE
Replace and retest in the following order (Also see Section 7.10.):
• Proportional valve/check connection
• ADB
PROP VALVE HTR 10VA
POWER ERROR
If the P4 indicator never lights or lights only briefly,
• remove the Cassette Interface Board jumper at the Cassette Interface Board and retest.
If the problem persists,
• remove the jumper completely and retest.
If the problem is still present,
• proceed to interconnect fault isolation procedure (Section 7.10.12).
If the P4 indicator remains lit for more than 2 seconds,
• check for a failed Proportional valve circuit with manual valve controls.
If the Proportional valve does not generate the failure,
• evaluate cassettes that have been used in the machine to determine if any of the cassettes in use are
Replace and retest in the following order (Also see Section 7.10.):
• Proportional Valve
• Cassette
• ADB
PWR CNTRL DC-DC
FAIL
Check U-frame wiring.
Set system switch to Standby; remove mains; wait 20 seconds; power up system.
If problem continues, replace PCB.
Quick check fails.
Check for other errors in the error logs.
M1046983 04/08
Alarm Text Condition (Basic info)
Circuitry >75C Power supply temperature
shutdown possible exceeds 75C.
Indicates P1 pressure
transducer on the Mixer is
out of specification.
Monitored Proportional Valve
drive current did not match
the commanded value
indicating failure of the
proportional valve,
connection, or drive circuit.
Vaporizer Failure Overcurrent condition
detected by the AC. Circuit
disabled.
faulty.
Using battery. PC fail AC supply is OK (AC GOOD
HIGH) but the system reports
using the battery (BATT STAT 1
and 2 LOW).
A message or failure
displayed during the system
checkout.
7 Troubleshooting
Priority Source Enabling Criteria
Medium PC
Mixer
EV
AC
Medium PC
DU
7-71