rE 99 High
Your boiler has encountered a general electronic system error and needs to be restarted to clear its memory.
Technical description: An error has been detected in the Combi, try resetting the boiler.
Typical repair cost: £80-350 (including labour)
DIY fix possible
Locate the 'Reset' button on the boiler control panel.Press and hold the button for 2-3 seconds until the display changes.Wait for the boiler to complete its startup sequence to see if the heating resumes.
Protect yourself from future repair bills
A boiler cover plan would cover faults like rE 99 — no call-out fees, no surprises.
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Parts commonly replaced
- Main Printed Circuit Board (PCB)
- Display Interface
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