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I have a couple of problems... My Potterton 28i has never worked properly since being installed. Thankfully I have a maintenance contract that keep The Heat Team in full time employment. The pressure gauge regularly falls below .5 bar, sometimes dropping to zero. I have to get up in my...

Thanks Tony. I certainly do not regard plumbers as being thick; today's modern plumbing techniques need to have very skilled engineers to do the job properly. I suppose what I'm saying here is I think a very low water flow from the hot taps is not normal. I don't see it in my neighbours...

I have a Potterton 28i, which I have regularly serviced and, equally regularly, have to call an engineer out to fix numerous problems with it. The main problem which never goes away is that the water flow from the hot taps is very weak. If the hot tap is on in the upstairs bathroom, it will...

The quoted 200 pounds is replacing the PRV and doing a de-scale. He hasn't mentioned the expansion vessel. How much are these for 28i ? £80? Also the unit is in the roof void and there is about a metre of space above it, so loads of room.

Thanks for guys. At least I've some idea of what it might be. My regular plumber is still taking the course on Potterton servicing but has recommended a colleague of his who has given me a price of around 200 pounds. But he's mentioning something about the pressure release valve and the...

I have a Potterton Performa 28i that keeps losing pressure and the hot water takes ages to come through. The flow rate is not particularly good either. (It's coming up for 3 years old and had a descale last summer) Central heating rads are working fine, nice and hot, but the hot water is...