High
E5 on Firebird Enviro System

Your boiler's burner has stopped working for safety reasons, meaning the system cannot fire up to provide heat or hot water.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Burner lockout (Note: The panel has been programmed so that e5 will no longer appear; the control panel no longer requires re-setting should the burner go into lockout).

Engineer required

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

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful