Error code
Midea / Water heater
E4
Outlet water exceeded 185°F for more than three seconds.
What it means
Outlet water exceeded 185°F for more than three seconds.
This explanation is shared only by models whose manufacturer documents the same code, meaning, and guidance.
Manufacturer guidance
- Avoid hot-water use until a professional checks overheating and temperature sensing.
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.