44 + High

Biasi 44 + Fault Code

Also written as 44 — same fault.

The Biasi 44 + fault code means: your boiler is failing to light the gas properly and has locked itself out for safety after several unsuccessful attempts.. It appears on 2 Biasi 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: Fault of cumulative gas valve timeout without flame.
Typical repair cost £150-350 (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 →

Biasi models that show the 44 + fault code

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

Source

Biasi 44 + fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.

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