No hot water when timer on water only

[bfcbri]

I wonder if anyone can help me with my problematic central heating boiler.

I am a complete novice when it comes to anything like this but wondered if there is a simple solution to my problem.

When I have the timer on water only the boiler will not fire up and therefore we have no hot water. If it is on with heating as well then all runs fine. As summer is approaching (hopefully!!) then we will be using the heating less but can't at the moment as we don't get any hot water.

My boiler is a Baxi 100 ( I think, but only by looking at pictures on the internet) and it has a red Cubex?? tank above it.

If anyone can guide me to a simple fix then I would be extremly grateful

Thanks

Brian

 

[picasso]

honeywell 2 port

• picasso
• 18 Oct 2010
• 31

honeywell 3 port

• picasso
• 18 Oct 2010
• 26

have a look near your hot water cylinder and see which of these valves you have.

 

[bfcbri]

The valve looks like the first one without the bottom piece.

Hope that makes sense

Bri

 

[picasso]

I think the valve micro switch isint working, you can change the head on the valve if it has a small dimple on the cover but I would get someone out if your not confident working with electricity (and to confirm that the valve is the problem)

 

[bfcbri]

I think the valve micro switch isint working, you can change the head on the valve if it has a small dimple on the cover but I would get someone out if your not confident working with electricity (and to confirm that the valve is the problem)

Thanks for your reply. I will have a look at the valve but think you may be right and it will be safer for me to get someone out

Thanks again

Bri

 

[lilab]

This happened to me a couple of weeks ago. It was the motorised valve. We replaced it and all is now fine. Mind you we had a hiccough or two along the way as initially we thought it might be the programmer. Also once we replaced the valve we had a small wiring issue, but all is well and now the heating is off and the water on timing as it should be for the summer. Good luck.

 

[bfcbri]

This happened to me a couple of weeks ago. It was the motorised valve. We replaced it and all is now fine. Mind you we had a hiccough or two along the way as initially we thought it might be the programmer. Also once we replaced the valve we had a small wiring issue, but all is well and now the heating is off and the water on timing as it should be for the summer. Good luck.

Thanks for that info, I am hopefully going to get someone to have a look at it tomorrow and then I will have hot water again without the heating!!