Vaillant Ecotech F.75

[hertsboilers]

http://www.ebay.co.uk/itm/Valliant-Service-Kit-F75-0020023720-/321754096597?nma=true&si=E%2FyB%2FZo7rmyYmSI5WPPk%2B%2F0BisE%3D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

I reckon someone has installed the f75 kit(with sensor) and not removed the old sensor.

F75 kit is with a sensor but it is near heat exchanger not near the pump.

 

[picasso]

Pretty sure the nut is on the pump end but you never know

 

[Ackoman]

Well, he came back this evening (unannounced) with another new sensor and replaced the other one (the one in the right of the picture). Upon switch on, the F.75 was replaced with a F.22 (low pressure) and the digital readout was now displaying sensible numbers. After recharging the system, it came on fine and has been working fine for a couple of hours now. He thinks the PRV is leaking slightly so is coming back tomorrow to fix that.

Hopefully that is the end of it.

 

[Agile]

Hopefully!