Medium
F13 on Johnson Starley Comet 80

Your boiler has shut itself down as a safety precaution after someone tried to reset it remotely too many times.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Remote reset lockout

DIY fix possible

Locate the main power switch (fused spur) for the boiler.Turn the power off for at least 30 seconds.Turn the power back on and press the reset button on the boiler control panel once.

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful

Boiler won't turn on — 9-step checklist

Work through these before the call-out.

Read →

Boiler keeps cutting out

Lockout fault with a reset-needed pattern.

Read →

Yellow or orange flame — CO safety

Safety-critical — turn off, read this.

Read →