Eventually fixed my problem in a roundabout way. I stripped the boiler down and cleaned the inside of the burner chamber - unfortunately the burner was damaged - I had to replace the burner (£170) and at the same time replaced the seal on the fire chamber itself.
Boiler now working fine and...
Thanks for the reply Stevie, but I've already been there on the condensate trap - I've now disconnected that completely on the advice of one of the service engineers.
Last night, I found another overheat temperature sensor on the air/gas inlet to the boiler. It's the same type as the one on...
I'm amazed to find someone else with a Baxi Barcelon - there don't seem to be that many about.
I'm having a similar problem with the boiler cutting out on startup. It's obviously related to temperature.
I have been in contact with Baxi, but they are relucant to answer any queries unless you...