What does the Keston E44 fault code mean?

Your boiler has stopped working because it cannot communicate with the part that monitors the temperature of the water returning to the unit.

How much does it cost to fix Keston error code E44?

Typical repair cost for the Keston E44 fault is £90-180 including labour.

Return sensor open circuit – check connections to return sensor are in place

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

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.

Break-even maths on monthly cover.