⚠
warning Black & Decker
Error Code E3
Indicates a fault with the evaporator temperature sensor.
? What Causes This
Evaporator temperature sensor malfunction or obstruction preventing accurate readings.
✓ How to Fix It
Contact BLACK+DECKER customer service for support and assessment.
Source: page 26 of the official manual
From the manual
This error code appears in:
Black & Decker Bxac40007gb Portable Premium Air Conditioner