S.33 on Vaillant turbomax plus boiler

[Samo1987]

Hi guys wondered if you could help me.

I had an s.33 status code appear on my boiler referring to the flue. The flue is not blocked and I have also changed the APS switch and hoses.

Old and new switch seem to make when blowing and sucking Into the 2 little pipes off the switch. I've been advised this could be a PCB failure.

Any help on this would be most appreciated

Thanks Sam

 

[Dan Robinson]

Call an engineer and stop playing with your boiler's flue.

 

[Samo1987]

Thanks for your reply Dan.

I haven't touched the Flue just looked inside it

 

[Dan Robinson]

 

[Bunnyman]

U are working in a dangerous area and messing with a main boiler safety device u will get no gas help here you need an rgi

 

[Dean744PiN5]

To really test the APS you need to blow into it has hard as you can.

 

[Dan Robinson]

I prefer to use a Dyson actually.... took ages to make the adapter for the tubes but has made me a tidy sum since.

 

[Gasescape]

To really test the APS you need to blow into it has hard as you can.

Easier to use a Regin pump

 

[gasright]

To really test the APS you need to blow into it has hard as you can.

Or take it to a petrol station and use the Air pump, it might cost you 20p to use though.