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CPU light on ACX7xx flash rapidly (at bout twice the normal speed)

Issue

After an attempt to cold start the controller by removing AC power with the batteries disconnected, the unit started up with its CPU light flashing very rapidly (hard failure mode)

Environment

ACX780

ACX781

Cause

Partly cleared memory.

The random access memory  (RAM) on the ACX78x take a long time to erase.

Resolution

Remove the batteries

Power down the unit

Wait 5 minutes

Power up the unit

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Version history
Revision #:
1 of 1
Last update:
‎2018-09-06 10:24 AM
Updated by: