Error code
Midea / Water heater
A1
Internal microcontroller command failure.
What it means
Internal microcontroller command failure.
This explanation is shared only by models whose manufacturer documents the same code, meaning, and guidance.
Manufacturer guidance
- Report A1 to service for controller replacement assessment.
Manufacturer source
Models documented with this signal
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.