Boiler Heat Exchanger busted

[Suzan]

Tbh i don't see why I can't just get a refurb heat exchanger for it, drain the system down/power flush/clean f&e, and fit heat exchanger to the boiler. There were no faults on the boiler - stayed solid blue, just burner indicator started and then stopped (probably recognised blockage?)

 

[Aire]

Given how this problem started after a draindown It's probably more likely an air lock or pump failure. Not saying your system isn't sludged as it might be. But yes it can be flushed. And I don't work on Worcesters so can say for sure but the seal on the top should be replaceable. If not you can replace the heat ex. I wouldnt recommend a refurb off eBay though. A new one Will set you back around £350 + fitting. Not cheap but certainly cheaper than a new boiler.

 

[Suzan]

I mean I'd like to think that plumber had some idea of what he was doing. Things sounded like they were working ok but because of a blockage (you can hear the pipes clanging) the igniter stopped. Bled all radiators and nothing, water was lukewarm but not hot hot and that was in the bathroom and kitchen. So don't think it's air as I vented it even from the circulation pump. Got a Wilo Yonos Pico and it is spinning and working fine (near the hot water cylinder). The plumber said it is the heat ex and I spoke to Bosch and they said they cover that just 120 for labour costs. Not sure if they'll solder the gas pipe the plumber cut off tho ¬_¬

 

[Suzan]

This is from the PP today

"To attend to above property to assess no heating and no hot water. On inspection Worcester Bosch heat only boiler found to be firing but running for a short time before cutting out. System has recently been worked on by a third party.On removal of boiler cover main heat exchanger found to be showing signs of overheating. Burner case seal also found to be unserviceable. System found to have circulation problems. FE tank also found to be contaminated. Advised client that the boiler is beyond economical repair. To isolate gas supply to boiler and make safe. To issue warning advice notice and warning label attached. Recommendations are Powerflush system replace boiler with ideal heat only boiler with system filter new pump"

 

[Suzan]

"new pump" being the wilo yonos pico as I described above, which he said works fine... :\

 

[rpm]

They actually cut the copper pipe in two?

 

[Suzan]

Yep..

 

[Suzan]

Full pic

 

[Riley]

Its never ID

 

[Riley]

I’d still be saying airlock and boiler needs some TLC. Burner case seal unserviceable?? What the hell does that mean

 

[Suzan]

Is it bad to replace the heat exchanger though? Need to get it power flushed before that though otherwise sludge may go into the new heat exchanger we get fitted. Power flush should remove airlock/sludge right?

 

[Riley]

Why are you ignoring what we’re saying. How do you know it’s sludged?

 

[Suzan]

I'm not ignoring I'm saying would it be a bad idea to do that since the heat exchanger needs replacing :\... The plumber said it's sludge but I thought it was air initially. I bled all radiators so no air in there, so that's why I'm asking if a power flush would remove an airlock? because how else are we to remove an air lock... :\

 

[Riley]

Well firstly you need the boiler reconnecting. Get another firm in, not PP

 

[Suzan]

Ok, and once the boiler is reconnected?

 

[Aire]

Removing air from radiators doesn't remove airlocks. Did you have any issues with the system prior to draining down? If the initial plumber hasn't vented and ran your system properly he's most likely knackered the pump.

 

[Suzan]

There were issues prior i.e. when I opened the bath tap for hot water sometimes nothing would come out for a sec then a big *plop* (sorry didn't know how else to describe this!) then water, then more blobs of air etc. That has happened ever since I removed a rad a year ago tbh. There's always been a build up of air hanging around... When the plumber checked it today though he said the pump is fine and motor was spinning fine.

 

[Harvest Fields]

Its never ID

Their report says case/burner seal deteriorated and burner seal passing. So its ID. Cap off is correct mate.

 

[Riley]

They said unserviceable bud. I bet it’s fine. This sounds really fishy to me

 

[Harvest Fields]

They said unserviceable bud. I bet it’s fine. This sounds really fishy to me

But how do you know it isn’t. He could be absolutely right. Just because he works for PP doesn’t means he is wrong.