IBM 3000VA 3U Rack UPS shows display content mirrored and upside down - IBM Servers

Resolving The Problem

Source

RETAIN tip: H21651

Symptom

During normal operation, the IBM 3000VA LCD 3U Rack uninterruptible power supply (UPS) may show the content of the LCD display mirrored and upside down.

Trying to navigate through the LCD menu or resetting the UPS alarm or any other such related action does not solve this issue.

Affected configurations

The system is configured with one or more of the following IBM Options:

• IBM 3000 VA LCD 3U Rack UPS (100V / 120V), Option 53953AX, any replacement part number
• IBM 3000 VA LCD 3U Rack UPS (200V / 208V), Option 53953JX, any replacement part number
• IBM 3000 VA LCD 3U Rack UPS (230V), Option 53953KX, any replacement part number

This tip is not system specific.

This tip is not software specific.

Solution

No parts need to be replaced. Perform the following steps to resolve the issue:

1. Fully power off the UPS as outlined in the User Guide per MIGR-5085198

2. Switch the utility power breaker off for the utility power line connected to the UPS.
   
3. Wait some 30 seconds.
   
4. Switch the utility power breaker on for the utility power line connected to the UPS.
   
5. Power the UPS up.
   

Additional information

This issue is caused by electrical noise on the utility power lines. The LCD may receive some bad signals that can cause it to display the content mirrored and upside down. The LCD supports a number of functions including mirrored display.

As the issue is utility power related there cannot be a fix implemented for the UPS to avoid this issue. This requires correction of the utility power that is being fed into the UPS unit. The IBM 3000VA LCD 3U Rack UPS is a line interactive UPS unit.