!
error Black & Decker
Error Code E4
Indicates a water drainage issue detected in heating mode (for models with heat feature).
? What Causes This
Water compartment is full, indicating an unexpected amount of moisture collected during heat operation.
✓ How to Fix It
- Unplug the unit from power source and move it to drain area.
- Allow water to drain out completely before replacing cap.
- Restart machine, if error persists – seek service assistance.
Source: page 22 of the official manual
From the manual
This error code appears in:
Black & Decker Bxac40007gb Portable Premium Air Conditioner