Medium
13 on Johnson Starley C16d

Your boiler has been manually reset too many times in a single hour and has locked itself for safety.

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.

What the manual says

Manufacturer manual

Remote reset lockout (Exceeded 5 remote resets per hour)

From this model's manual
Verified against the Johnson Starley C16d installation & service manual, page 27.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Turn off the power supply to the boiler at the fused spur switch.Wait for at least 60 minutes without touching the controls to allow the internal timer to reset.Restore power and attempt one single manual reset on the boiler unit itself.

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