BoilerFaultCodes.com
rE Medium Lockout

Your boiler is undergoing a system reset, which means it is attempting to restart itself after detecting an internal error or interruption.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description: The boiler resets

What causes this fault?

This fault occurs when the boiler's internal computer experiences a software glitch or a momentary loss of communication with its sensors. It is frequently triggered by a faulty control board or an incorrect reading from an outside temperature sensor that confuses the system's logic. The 'rE' code signifies that the boiler is stuck in a loop trying to reboot itself to clear these electronic errors.

Typical repair cost £0-120 (including labour)

DIY fix possible

Wait for the boiler to complete the reset sequence automaticallyPress and hold the reset button for 5 seconds if the code remains on the screenCheck if there has been a recent power cut or surge in your home

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