Hot Water Problem on Combi Boiler Ariston Microgenus HE 24 Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[rubenesc]

i have "ariston microgenus he 24" hot water runs fine for 10 mins then temperature starts to drop on boiler , error code ,e34 shows ,which indicates air pressure switch failure .have changed switch but problem still the same ..any help please .