E13 High
Your boiler's internal computer has encountered a glitch or a configuration error and cannot communicate properly with the system.
Technical description: Software error
Typical repair cost: £220-450 (including labour)
DIY fix possible
Locate the reset button or dial on the boiler control panelPress and hold the reset button for 5 seconds, then releaseWait 2 minutes for the boiler to restart; if the code persists, a professional must inspect the electronics
Protect yourself from future repair bills
A boiler cover plan would cover faults like E13 — no call-out fees, no surprises.
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Parts commonly replaced
- Printed Circuit Board (PCB)
- Main Control Board
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