A5

Internal microcontroller register failure.

What it means

Internal microcontroller register failure.

This explanation is shared only by models whose manufacturer documents the same code, meaning, and guidance.

Have qualified service assess controller replacement; do not open the electronics.

Manufacturer source

Select your exact model below to open its manufacturer source. Manual editions and model revisions can differ.

If there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.