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how to fix f22 problem on boiler?

I don`t have a combi boiler but i do have a f22 problem.The pressure is fine but when i switch the water on,the boiler starts heating up for 5 seconds or so then tells me f22 yet the heating is fine.Anyone help me plse
andy, January 2017
Yes, YOU can help.

Have a look in the manual.

Not got one?

Work out the make and model of your boiler - let's call them Make and Model, shall we?

Do a Google search for - say - "Make Model Manual". You could even just go straight to the makers site and see if you can find it there.

Does the manual help? Maybe.

If you still need help you could try another Google search for - say - "Make Model F22"

If you still need help, you could try to find a dedictaed plumbers forum

Anon, January 2017
You do not say the make or model of your boiler
You do not say the pressure
You claim it's not a combination boiler

So this video is no help...
https://www.youtube.com/watch?v=iApHxkj4cOA

Good Luck..., January 2017
link Click here to see other fixes for Baxi Baxi Duo-tec.