How much does it cost to fix Alpha error code FE96?

Typical repair cost for the Alpha FE96 fault is £100-200 including labour.

FE96 Low

Alpha FE96 Fault Code

Q: What does the Alpha FE96 fault code mean?

Your boiler is struggling to detect the outside temperature, so it is temporarily running on a backup setting to keep your home warm.

The Alpha FE96 fault code means: your boiler is struggling to detect the outside temperature, so it is temporarily running on a backup setting to keep your home warm.. It appears on 3 Alpha models in our database.

Technical description: External sensor fault.

What causes the Alpha FE96 fault?

This fault occurs when the boiler loses its connection to the sensor mounted on the outside of your home. It usually happens because the sensor itself has failed due to water ingress or because the external wiring has become damaged or corroded over time.

This fault is often noticed during the transition into autumn or winter when the boiler relies more heavily on the sensor to calculate the heat needed for the home.

Typical repair cost £100-200 (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 FE96 fault code

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

Source

Alpha FE96 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