E44 High

Alpha E44 Fault Code

The Alpha E44 fault code means: your boiler has stopped working because the internal computer has lost communication with the gas valve, preventing the system from producing heat or hot water.. It appears on 5 Alpha models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Gas valve command time-out
Typical repair cost £160 - £350 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Alpha models that show the E44 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Alpha E44 fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026