E5 High
Your boiler's burner has stopped working and has gone into a safety lockout mode.
Technical description: Burner fault (possibly burner lockout)
Typical repair cost: £90-250 (including labour)
DIY fix possible
Check that you have enough oil in your storage tankEnsure the oil supply valve is fully openPress the illuminated reset button on the burner once and wait for it to restart
Protect yourself from future repair bills
A boiler cover plan would cover faults like E5 — no call-out fees, no surprises.
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Parts commonly replaced
- Oil nozzle
- Photocell
- Oil pump
- Control box
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