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Hi I purchased a UH8-RF with 3 Neoair stats to control a combi system with rads upstairs and 2 UFH zones downstairs in an S Plan format with 2 x 2 port valves. Just looking at the wiring diagram on the UH8-RF and wonder why it shows using the boiler output along with the valve switch (grey and...

Its a potentiometer behind the black dial, shouldn't be an expensive part to replace, but it involves removing parts of the fire, so you'd need to be competent with electronics really and be careful, always remove the mains power before starting.

Hi, My fire was giving off only a little myst even on the high setting. I've purchased the Maplin transducer and fitted it but I now don't get any myst. I checked and its connected properly and the connection into the sump is screwed in properly too. Was yours just a straight swap and it...

Hi I've read loads of articles on this programmer which I have just connected to a ecotec 837 combi and think I understand most of it, but I have a few questions. 1. What are the radiator, tap and circulating indicators in the top right for? I thought that they would indicate when these...

My dad has just had a Vaillant 837 boiler fitted which is working great except for the shower. At the same time as the boiler was fitted, the old pumped shower was removed and a Mira Infuse 360 fitted. This was squealing and a check of the pressure at the shower showed 5.6 bar, so a pressure...

I had a similar problem and ended up putting silicone sealant all along the inside and in the corner and making the screen fixed ! It just kept leaking otherwise.

Thanks Dave and Doctor Drivel. I've measured the flow from the cold tap (off the water main) and its about 12l/min, although the main stock cock isnt fully on and is jammed, so I'm sure the flow rate once this is fixed will be better. I was thinking of putting the new boiler in the...

Hi I currently have a standard old (nearly 20yrs) Potterton boiler with tanks in the loft and cylinder in the cupboard. I run a Mira Event XS power shower off this, I believe to be 14l/min and it gives very high flow rates. I am looking to change my boiler for a Vaillant 937 and wondered...