Hi all, a quick update. As the 7 has been parked outside I decided to remove the Rev counter and put it in airing cupboard at home just encase it has got damn, can’t remember what led me to that. I have put it back in the car after a couple weeks in the warm and the light is no longer on, so fingers crossed it’s sorted, but will report back when I have completed further testing Thanks again to all who responded to my issue. Kind regards Simon