IBM 3745 Problem Determination Manual page 56

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ALARM A8: MOSS POWER SUPPLY DOWN OR MOSS COOLING PROBLEM hhmmss ref code
Cause:
Action:
Blower
Airflow detector
Power control
Power supply
• Check that air vents are not obstructed.
• Re-IML MOSS.
• If the problem persists:
CO
and give reference code.
ALARM AA: PLAN AIR FILTERS CLEANNING WITH SERVICE PERSONNEL hhmmss ref code
Cause: Air filters must be replaced.
Normal maintenance includes replacement of air filters every year.
Action:
CO
and give reference code.
ALARM AB: POWER SUBSYSTEM: POWER INTERNAL ERROR hhmmss ref code
Cause:
Action:
Power control
MOSS microcode
MOSS hardware
• Dump MOSS from the control panel: Press Function repeatedly until 2 is displayed;
then press Validate:
Chapter 1. Alarms and Alerts
1-39