Baxi Bermuda 57/4 no heating nor hot water?

get a old eng out who knows the boilers, could be thermcoupling or possabe gas valve, they are nice simplel boilers to work on I like them

erj
March 2011

Why do you have to have a new boiler just because the gas valve has failed?

boiler bill
March 2011

Some feedback,
What has the 3way diverter to do with not firing? 3 way diverter, switches between Heating and hot water., On a combi, it would be within the unit, On others as the back boiler you have, It is usually near to the Pump unit, Or can't he find that either. If he cannot see it, Maybe he needs a picture. YOU will NOT need a new boiler, New Control, Maybe, More checks need to be done. If you google your model, as well as finding this post, you will find other information.

Sheepdog
March 2011