Boiler making grinding noise

[paulnumbers]

Wonder if one can help.

Combi Boiler, Vokera 29e

it’s making a grinding noise :-

a) intermittently when the central heating is on

b) intermittently when it fires up during the day when no central heating is on for approx 1 minute

c) NOT when used for hot water, that I notice

The noise is quite noticeable right through the house from the pipe work

I’ve assumed it’s the pump, and have bought one ready for heating engineer to fit, but after a little more googling wonder if it might be the fan

Any thoughts from anyone please?

[Mike4]

Wonder if one can help.

Combi Boiler, Vokera 29e

I don't know much about Vokèra boilers, they are a scottish thing really. Trouble is with any boiler problem the first hurdle is identifying exactly which boiler it is and Vokèra made a LOT of models over the years. Annoyingly none appears to be called "29e" so I can't look up the manual and virtually peer inside yours. Vokèras usually have a name as well as a number. The nearest I can find is the "Vokèra Mynute 29 EHE". Or do you have a G.C. number for it perhaps?

Generically however, about the only thing inside an 'ordinary' combi that makes a grinding noise is the flue fan. New fans are getting expensive nowadays so you might find it worth sending yours to a firm such as cetltd.com to have it reconditioned.


(Speeling edit.)

[paulnumbers]

Wonder if one can help.

Combi Boiler, Vokera 29e

I don't know much about Vokèra boilers, they are a scottish thing really. Trouble is with any boiler problem the first hurdle is identifying exactly which boiler it is and Vokèra made a LOT of models over the years. Annoyingly none appears to be called "29e" so I can't look up the manual and virtually peer inside yours. Vokèras usually have a name as well as a number. The nearest I can find is the "Vokèra Mynute 29 EHE". Or do you have a G.C. number for it perhaps?

Generically however, about the only thing inside an 'ordinary' combi that makes a grinding noise is the flue fan. New fans are getting expensive nowadays so you might find it worth sending yours to a firm such as cetltd.com to have it reconditioned.


(Speeling edit.)

Thanks as ever Mike.

I believe this is the one. https://www.vokera.co.uk/wp-content/upl ... manual.pdf

It has the part number for the fan, which i've since ordered from ebay, so I'll get the chap to fit it next week.

Follow up question. Eventually I'll replace with a more modern boiler. Is it always the case you need a new flu fitted when that happens?

Paul

[tacpot12]

It is usually the case that a new flue is required, sometimes because the position of the flue on the new boiler, sometimes because of how the flue connects to the boiler, and sometimes because the old flue is corroded or damaged.

[UncleEbenezer]

The big boiler installers all seem to include it as standard, and in my recent thread our Foolish boilerman indicated it's what he'd expect.