Baxi boiler no hot water but still have heating

Snowy106

My baxi boiler is heating radiators but no light coming on for water and water is cold. Would the light not coming on suggest anything? 

The pressure seems fine.🙏Glad for any thoughts. 

Ectophile

What sort of boiler? Conventional boiler with hot water tank, or combi boiler?

Snowy106

Sorry, I should have said!
combi boiler Baxi 

jefaz07

Which one? As in Model

Bendy_House

With your CH running, listen to the boiler as someone turns on a hot tap. Do you hear any 'click' or 'thrums'?
If absolutely zero response, it could be as little as a faulty flow switch, usually cheap and easy to replace.
But it could be a lot more... Like the diverter valve, again not end of t'world.
But it could be a lot more... Like...

Snowy106

Thank you, It is a Baxi 105e (sorry!)

jefaz07

It will be a diaphragm! It will have split. 

Part Number 5111138 about £10-15

Requires changing. 

Snowy106

you know, I had to have the diaphragm changed about 8 or 9 years ago…
mom really hoping it is that!

Bendy_House

As I was saying, it could be, like, the diaphragm...  

cough

jefaz07

Snowy106 said:

you know, I had to have the diaphragm changed about 8 or 9 years ago…
mom really hoping it is that!

I’d put my money on it! 9 years is a long time for something constantly moving. Very easy job. 

Snowy106

I would love to do it myself…hmm🤔
How much would a plumber charge to fix (if it is that problem)