E1-68 High
Your boiler has lost track of the basic flame sensor settings required to run safely and needs to be restarted to recalibrate itself.
Technical description: Ion base value is outside the factory limits or saved incorrectly – try resetting the boiler
Typical repair cost: £120-350 (including labour)
DIY fix possible
Locate the power or reset button on the front control panelPress and hold the reset button for 5 secondsWait for the boiler to complete its restart sequence to see if the error clears
Protect yourself from future repair bills
A boiler cover plan would cover faults like E1-68 — no call-out fees, no surprises.
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Parts commonly replaced
- Ionisation electrode
- Burner controller PCB
- Gas valve
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