More Breakdown Advice. Vaillant F75

[MK Heating]

Got a 2 and half year old EcoTec Pro 24 showing F75 on CH demand. DHW is fine.

Pressure differential sensor? If so where is it? Never worked on something so new!

 

[lame plumber]

under warranty still then?

 

[Dotty]

F75 kit required I'd say.

or go into the config and increase the pump speed......

 

[Ermintrude]

Pressure sensor bottom left of hydroblock. Kit is a bit of pipe to lift sensor up 10mm to stop air lock. Quick fix blow off prv to clear air. Kit is about £5

 

[MK Heating]

Read alot on google about this. Sounds like a pain... Going there tomorrow, will try the blowoff, Il get a replacement sensor to take with me. Is there any info on here about the config settings?

 

[Dotty]

http://www.vaillant.co.uk/mediaarchive/2013/09/ecoTEC-pro-installation-service-manual.pdf

 

[Ermintrude]

Read alot on google about this. Sounds like a pain... Going there tomorrow, will try the blowoff, Il get a replacement sensor to take with me. Is there any info on here about the config settings?

It's a real easy fix.

 

[arran197]

Drain the boiler using the drain off underneath, remove and clean the pressure sensor and re-fit. It'll be full of rubbish. If it keeps happening then the F75 kit will help, it changes the flow pipe from the heat ex so the pressure sensor is right by the heat ex instead of on the manifold and comes with a loom extension.

 

[Ermintrude]

Just fit kit when drained down.... Not worth the revisit!

 

[MK Heating]

All sorted with a new sensor, for now... Cheers!

 

[Ermintrude]

All sorted with a new sensor, for now... Cheers!

Did u fit the kit or just sensor ?