Boiler Heat Exchanger busted

[KingDoey]

Hmm KingDoey it's kinda funny because I did think it was an airlock but that PP was convinced it's sludge. I find it interesting how if it is an airlock, bleeding rads doesn't solve the issue...

Because as said before bleeding rads won’t always clear an airlock. It all depends how the system is piped

You need to set do a combination of things like cycle the pump vent the heat exchanger etc. Gradually force the heat round the system one radiator at a time. It’s not always a ten minute job

 

[Suzan]

No... and I guess shifting it through the pipes is only possible with a full drain... Even near the hot water cylinder there's a tiny valve to release air and barely any came out...

 

[Suzan]

I was shifting from one rad to another until the PP guy came round and deemed the boiler ID and shut it down. Couldn't continue the rad shifting from that point... How would you vent from the heat exchanger?

 

[KingDoey]

I was shifting from one rad to another until the PP guy came round and deemed the boiler ID and shut it down. Couldn't continue the rad shifting from that point... How would you vent from the heat exchanger?

Only a gassafe registered plumber could do that for you. Not you the user

 

[Suzan]

That PP was also saying in order to check for air near the hot water cylinder, he would have to cut through the pipe. I said to him "i'm guessing you'll solder the pipe back then..." he said "yeah definitely"...

 

[Suzan]

Hmm ok. Shame he just looked at the boiler and refused to do anything but decommission it.... trying to remove the airlock would have been nice but hey hum...

 

[Suzan]

But he didn't even think it was an airlock, he thought it was sludge because he saw the F&E tank and deemed it to be that..

 

[KingDoey]

Hmm ok. Shame he just looked at the boiler and refused to do anything but decommission it.. trying to remove the airlock would have been nice but hey hum...

Unfortunately it seems your original problem has unearthed a more serious problem. IE the registered engineer removed the case of your boiler and determined it was unsafe. That’s just par for the course I’m afraid

 

[Suzan]

Yeah. I can't exactly say if the seal/hex were looking any different from a few months ago anyway as i just go by the sound... didn't exactly go taking the cover off to look so maybe it was just gradually getting worse. Why it overheated though is another story...

 

[Riley]

It likely overheated because of an airlock