What does the Keston L5 fault code mean?

Your boiler has been manually reset too many times in a short period and has locked itself out for safety.

How much does it cost to fix Keston error code L5?

Typical repair cost for the Keston L5 fault is £0-120 including labour.

Turn off the power supply to the boiler at the fused spur switch

5 boiler resets in 15 minutes

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

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

7 signs repair isn't worth it anymore.