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Worth adding that when the (underfloor) heating is on (and there is presumably considerable water flow), it fires up and keeps going. Maybe this rules out the condensate drain? So the times when this is occurring is when it's sitting there just ensuring the megaflo is full of hot water. Logic...

Many thanks - sounds logical and will call the person who fitted the last parts (and didn't simply write off the whole boiler, though it's days are clearly numbered)

I have a Baxi Barcelona condenser boiler (yes it's 21 years old and yes this model has issues). Mine has been largely reliable and had a new pump in 2020; it is not leaking and holds pressure and we always have hot water for taps and heating. It's currently going through phases where the...

Yes, it has a pump inside it. Flow and return pipes below boiler are very hot - I'm wondering if that's due to the heating. Also wondering if there's a stuck valve on the underfloor heating and hot water is being returned to the boiler therefore it thinks there's no need to run. I will isolate...

duplicate

When there's demand i.e. the hot water isn't hot, then it fires up but then only stays fired up for less than a minute. It does it quite often. Difficult to tell if there's a problem with the heating as it's underfloor, very well insulated house and the boiler pump does enough to push it round...

I have a Baxi Barcelona condenser boiler. It was working fine, apart from leaking flow and return isolator valves after he changed the EV and PRV. My plumber changed these (not a full drain down but wait for a vacuum to be created - it's an unvented megaflo system). Then after a couple of days...

24 hours on and the pressure is still OK, but has dropped from 1.4 to 1.3. The balloon I put on the exterior pipe has a small amount of water in it after 24 hours - I guess 50ml. Does this suggest that the PRV is not totally shut and needs 'a clean' or replacing?

New valve inserted, re-pressurised to about 1.4bar and it's now holding pressure. There's about a teaspoon of water in the balloon on the external pipe after a couple of hours, so it sounds like I've fixed the bigger problem but a minor problem may still exist, but if it becomes significant then...

If I pressurise the boiler to 1.5 bar and do likewise with the filling loop, the most it reaches when the heating is on is 2 bar. With the boiler off, I re-pressurised to 2 bar just now and it's down to 1.5 bar within 15 mins, hence I'm convinced the leaking valve on the expansion vessel is the...

I think I've found the problem before I've even isolated the boiler or used the balloon - I've re-pressurised the expansion vessel and I can hear it leaking from the valve. If I get a schrader valve extension, is that likely to fix it?

Hi - I'm trying to diagnose why my Baxi Barcelona condenser boiler is losing pressure. It's connected to a megaflo and underfloor heating. I've turned off the flow and return on the underfloor heating and the problem is still there, so I assume that takes away any possibility of a leak within...

Miele G692 dishwasher not draining - the inlet/drain light comes on and I find that the area under the silver mesh filter in the base is full of water. When I bail out the excess water and reset the machine it carries on, sometimes until the end of the wash. If I disconnect the waste pipe from...

The tree with the TPO is 6+ metres away (3 metre canopy) and the other trees are relatively small or further away. The soil type is a mix of clay and flint/chalk. If I go for an alternative to a raft then I'm likely to need to get someone in to do it, whereas a raft I feel confident of doing...

Fair question - though I'm relatively close to neighbour's trees, one of which has a TPO on it. I'm also about a foot lower than the neighbour's garden. A stipulation of the planning permission was that I wasn't allowed to do strip foundations. 2 builders who came to quote both thought that a...

I'm building a garage down the side of my house. It will be a freestanding timber framed barn style single garage, with a wooden frame on a dwarf wall. It will measure 6m x 2.5m (exempt from building regs) and will have the house one side and a 6 inch gap until the neighbour's fence on the other...

Hi - I'm going to build a single detached garage this year. I have a narrow strip of land between my house and the neighbour's fence. I have done my own drawings and have planning permission. It's 6m long x 2.5m, so only 15 sq m and exempt from Building Regs. I need a bit of help to make sure...

Hi - I'm seeking some impartial opinion on whether a fault with my water softener has been caused by a faulty part or whether it has been caused by my plumbing system. To cut a long story short, my house is 5 years old and has a pressurised water system with a Megaflo. My incoming water...