E128 High
Your boiler has lost its flame while running, which means it has safely shut down to prevent issues.
Technical description: Flame error
Typical repair cost: £100-£350 (including labour)
DIY fix possible
Check if other gas appliances, like a hob, are working to confirm gas supplyEnsure your pre-pay gas meter has sufficient creditPress and hold the Reset button for five seconds
Protect yourself from future repair bills
A boiler cover plan would cover faults like E128 — no call-out fees, no surprises.
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Parts commonly replaced
- Ignition electrode
- Flame sensing electrode
- Gas valve
- Condensate trap
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