How much does it cost to fix Biasi error code E17?

Typical repair cost for the Biasi E17 fault is £90-160 including labour.

E17 High

Biasi E17 Fault Code

Q: What does the Biasi E17 fault code mean?

Your boiler has stopped working because the sensor that monitors the temperature of the water returning from your radiators has developed a fault.

The Biasi E17 fault code means: your boiler has stopped working because the sensor that monitors the temperature of the water returning from your radiators has developed a fault.. It appears on 2 Biasi models in our database.

Technical description: Heating return NTC probe error (short circuit / open circuit)

Typical repair cost £90-160 (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 E17 fault code

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

Antares Combi Repair: £90-160
Rinnova Adaptive Combi Repair: £180-380

Source

Biasi E17 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