How much does it cost to fix Vokera error code 0C?

Typical repair cost for the Vokera 0C fault is £120-£200 including labour.

0C High

Vokera 0C Fault Code

Q: What does the Vokera 0C fault code mean?

Your boiler has lost the signal from the sensor that monitors your hot water temperature, which will likely prevent the hot water from working correctly.

The Vokera 0C fault code means: your boiler has lost the signal from the sensor that monitors your hot water temperature, which will likely prevent the hot water from working correctly.. It appears on 1 Vokera model in our database.

Technical description: Hot water thermistor open circuit.

Typical repair cost £120-£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 →

Vokera models that show the 0C fault code

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

Linea Max Repair: £120-£200

Source

Vokera 0C fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

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