BoilerFaultCodes.com
rE98 High Lockout

Your boiler's main internal computer has encountered a startup failure and cannot control the heating process.

Call an engineer soon

Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Electronic card start error.

What causes this fault?

This fault occurs when the boiler's main control board fails to complete its initial self-check during the startup sequence. It is typically caused by a critical hardware failure within the electronic circuitry or a loose connection in the wiring that prevents the computer from communicating with the rest of the boiler's components.

Typical repair cost £180-350 (including labour)

DIY fix possible

Locate the Reset button on the control panelPress and hold the Reset button for 3 to 5 secondsWait for the boiler to complete its restart sequence

Find a Gas Safe engineer

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Protect yourself from future repair bills

A boiler cover plan would cover faults like rE98 — no call-out fees, no surprises.

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