heating problems please help

[ukpaul]

Hi all
I have a glowworm betacom 30c combi boiler
for the last 3 weeks now we have had no heating, its getting to 40-50 degrees ad then shuts down and it keeps on doing hat until I switch the boiler off, here are no airlocks in the system,
so I called out a heating engineer and a hour after he left it went back the same,
and so he called back today and spend 3 hours messing about with it,and also changed afew parts one off them was the pcb board, and its made no difference what so ever, he then told me the best bet is to get a new boiler and then left
so now am pulling my hair out of what to do/try next
can anyone help me please?
many thanks
paul

 

[Ermintrude]

Where are you? You need a component engineer to have a look.

 

[lame plumber]

croppies on call he is supposed to be qualified

 

[Billy Bob Bob]

call n a gas safe engineer YOU NEED A GOOD ENGINEER,who knows what there doing,you can stick a request up in here in the need a plumber/gas engineer section