Medium
F13 on Johnson Starley Comet 60

Your boiler has stopped working because too many remote reset attempts have occurred, causing the system to lock itself for safety.

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 for the boilerTurn the power off at the fused spur for 30 secondsTurn the power back on to hard-reset the control board

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 →