04-11-15, 11:45 PM
Thanks to all. Actually made time to have a proper look last night. Found badly routed sensor cable rubbing off brake disc. Hence why intermittent. Sometimes wet sometimes dry. Have moved cable and will test tomorrow. If it works I will attempt to seal it up. If not then there are a couple 2nd hand ones on eBay at around 30 quid. Thanks again for great feedback!