HR92 displays E2 error code

[VvrooomM]

I use these... not used them for long so can’t comment on reliability. But the HR92 fits the ones I’ve got.

https://www.radiatorvalves4u.co.uk/t...es.html#SID=25

Thanks, didn’t have any luck when I searched. Maybe my rads are not the standard 1/2” inlet, wouldn’t know without dismantling system.