What does the Vokera 78˚C fault code mean?

Your boiler has detected that the water inside it is getting dangerously hot and has shut itself down to prevent damage or overheating.

How much does it cost to fix Vokera error code 78˚C?

Typical repair cost for the Vokera 78˚C fault is £120-250 including labour.

Flow temperature NTC > 78˚C (Boiler at lock out)

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Each noise points to a different fault.

Lockout fault with a reset-needed pattern.

Sludge build-up — needs flushing, not bleeding.