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House built in 1979. I believe it was built with the PVC sliding door which we've recently replaced for an aluminium door (as part of a much bigger project). As per the photos, there is a gap between floorboards and rear of door (threshold?) and I can see down the cavity. The DPC is two courses...

OK, I've gone through the saga of repairing my clapped-out Sime Super 90 plus (90,000 BTU) combi by changing the DV. It copes, just, but I think there's more severe problems because it takes ages to heat DHW. Plus it's massive. And I thinks it's dying. So, because I trust the majority of the...

I've currently got a Sime Super 90 Plus boiler. It's big, it's old and the DHW is rubbish. Having said that, it needs a new diverter valve (I replaced it last year, but the replacement (brand new) was also faulty - I didn't return it because it was better than the old one, it was only £25...

Hi, I think the question is self explanatory.... The boiler is a Sime Super 90 Plus combi. It has a brand new diverter valve. When the CH is switched off and the pipes are cold, if I run the DHW until it warms up, the CH flow pipe also warms - is this right? Or is my new diverter valve...

I have what I believe to be a fully working Sime Super 90 plus boiler. It heats the CH and it heat the DHW fine (the diverter valve is working because when the CH is off, the hot water heats up). BUT, if I open my main stop tap fully, the water pressure is such that the boiler can't cope - at...

Hi, My boiler is a Sime Super 90 Plus combi. The diverter valve needed replacing, so I bought a new one and did this. The new valve (seems to) work a treat. BUT, in changing it I think I've inadvertantly done something bad.... When I try to run hot water, or use the central heating, the...