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It's a Performa 28i. After a minute or so, the green hot water light flashed then went off again. WIll the whole boiler need replacing, or just a part? Thanks

Hi, I have a Potterton combi. It's heating up rads fine, but there is no hot water. Is there a simple explanation, or something I can try? I also notice there is a knocking noise when the system comes on/off. It's been doing this for a few weeks so I don't think it's caused the hot water...

I hear a knocking noise when my boiler comes on/off. Just three or four knocks. It works fine and heats all rads. I did recently have a problem with the downstairs rads after the program device ran out of battery (have sep ones for up and down) and I had to manually push a lever/switch for the...

Thanks for your replies. They were very useful. I found the two switches and pushed the one for the downstairs circuit. It was a bit stiff, but then the rads started heating up fine. I reset the downstairs controller and reseated it, then re-programmed it. All working fine now, but I do have...

Both thermostat controllers are made by Horstmann (the boiler is a Potterton) Sorry, don't know what you mean by "RF" or "re-binding" (my fault - I'm not technial!) I had a look where the boiler is. There are four pipes coming out, two for upstairs and two for down. Each pair runs through...

Hi - please help me wth a problem, and would like some advice. I have two thermostat controls for my CH. One upstairs and one downstairs. The theory is that the upstairs and downstairs rads can be set to come on at different times, all running off one combination boiler. And it works fine...

I've got a similar problem with my Bosch Exxcel in that it doesn't drain well. It's 4 years old. I've got it on it's back to get to the pump assuggested earlier. However I seem to need a special tool to get the base off. It looks like I have to insert a "key" type device and turn that to...