Cooling fans in Uninterruptable Power Supply (UPS) might stop

Troubleshooting

Problem

Sometimes the cooling fans in an Uninterruptible Power Supply (UPS) stop running. The fans are working as designed. No action is required.

Resolving The Problem

Source

RETAIN tip: H167854

Symptom

Sometimes the cooling fans in an Uninterruptible Power Supply (UPS) stop running. The fans are working as designed. No action is required.

Affected configurations

The system is configured with one or more of the following IBM option part numbers:

IBM 1000VA LCD Tower UPS (100 V /120 V), option part number 53961AX, any replacement part number
IBM 1000VA LCD Tower UPS (200 V / 208 V), option part number 53961JX, any replacement part number
IBM 1000VA LCD Tower UPS (230 V), option part number 53961KX, any replacement part number
IBM 11000VA LCD 5U Rack UPS (200 V/208 V/230 V), option part number 53959KX, any replacement part number
IBM 1500 VA LCD 2U Rack UPS (200 V / 208 V), option part number 53951JX, any replacement part number
IBM T1500VA Tower UPS (110 V), option part number 55952AX, any model
IBM 1500VA LCD Tower UPS (100 V /120 V), option part number 53962AX, any replacement part number
IBM 1500VA LCD Tower UPS (200 V / 208 V), option part number 53962JX, any replacement part number
IBM 1500VA LCD Tower UPS (230 V), option part number 53962KX, any replacement part number
IBM 2200 VA LCD 2U Rack UPS (230 V), option part number 53952KX, any replacement part number
IBM 3000 VA LCD 3U Rack UPS (200V / 208V), option part number 53953JX, any replacement part number
IBM 3000 VA LCD 3U Rack UPS (230 V), option part number 53953KX, any replacement part number
IBM 6000VA LCD 4U Rack UPS (200 V/208 V), option part number 53956AX, any replacement part number
IBM 6000VA LCD 4U Rack UPS (230 V), option part number 53956KX, any replacement part number

This tip is not system specific.

This tip is not software specific.

Workaround

The fans are working as designed. No action is required.

Additional information

Cooling fan speeds could be changed. If its ambient temperature and load are low, the fan might stop running. This is not a failure.

Document Location

Worldwide

Operating System

System x Hardware Options:Operating system independent / None

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