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Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Dec 19, 2018
3
0
1
Member Type
DIY or Homeowner
My Biasi boiler was cutting out, hence no hot water or heating and the fault code was saying faulty air pressure switch.
I replaced the switch and it worked all evening and then cut out again.
If I do a complete shutdown and re-start after a few hours the boiler works again but only for a few hours before same fault.
Fault is still showing faulty air pressure switch.
The fan is starting and running ok.
Any ideas would be much appreciated.
 
I am a qualified electrical engineer and have no intention of messing with anything gas related but this problem to me seems to be a electrical problem.
All I am trying to find out is if anyone as come across this problem before.
 
So tell me this, what exactly is this forum about?
Looks like it is a closed shop for so called plumbers who know nothing about plumbing or central heating so ask each other what to do?
 

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