Low
S.17 on Heatline CaprizPlus 24a

Your boiler is simply finishing its job by running the pump for a short time to cool down after you have used the heating or hot water.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Post run pump

Community-sourced, unverified
We could not tie this code to a specific manual. Treat it as indicative only.
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

No action is required as this is a normal operating status code, not a fault.Wait a few minutes for the status code to change once the cooling cycle is complete.Ensure your radiator valves are open to allow for easy water circulation.

Find a Gas Safe engineer
Search the official register →

Avoid the next call-out bill

A cover plan would handle faults like S.17: no call-out fees, no surprise bills.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

Related fault codes

All 111 fault codes on the CaprizPlus 24a

Seeing a different code? Every code this model can display, in one place.

Related guides you might find useful