It's more likely that either the motor or mic...ro switch has failed that is stopping the valve from opening at the set time. Buy a complete valve unit then if the valve has gone at least you've got the part and it will only cost a few penny's more Have a 10 torqs screwdriver handy to undo the 2 screws securing the head to the valve. That's so easy to do. If yours is a 2 port S plan if it comes with an extra white wire just tape the end up and secure away.
Verified purchase: Yes | Condition: New
The motorised valve is identical to my... original valve which had lasted over 19 years, it is a quality product that has stood the test of time. The faulty valve still worked fine, though it had developed a slight leak from the operating shaft not bad after 19 years continual use.
Verified purchase: Yes | Condition: New
Good solid quality. Works fine. I will be getting anoth...er to replace a similar 30 year old valve that has just started to not shut off fully. I will update this post in 30 years time when this new valve starts to fail! Not the cheapest on the market, but well worth the few extra pounds. I would not buy the cheaper alternatives.
Verified purchase: Yes | Condition: New
Honywell valve 100% top quality, b...etter than ALL other brands of valve, ( beware there are many pretenders on the market nowadays )
Verified purchase: Yes | Condition: New
This appears to be a genuine Honeywell product, and not a cheap c...opy, sold at a good price. If it is old stock, it doesn't look it.
Verified purchase: Yes | Condition: New