Help needed

10 Mar 2018
Reaction score
United Kingdom
I have a valiant eco tech plus 824 that has an issue. When I run the hot water, it runs hot for a minute then goes cold. The burner cuts out and won’t cut back in. If I run the hot tap on half, I get constant hot water. My engineer came out and was confused, rang valiant tech support and they had no idea. Said it must be the PCB. That has been changed and still not fixed the problem. Any ideas what could be the issue?

Cheers in advance

Sponsored Links
Thanks Dan, is it easy enough to change? Looks ok to drain and remove, just not sure about re-filling and getting the air out.
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local