Hi we have a translift Bendi BE2056 mid 90s with an EV100 controller. The fault started with fault code 47 and this happened when the truck has been working and has got warm. The truck judders and then stops and when you try and restart selecting foward you get fault code 47 but if you try and start and engage reverse you get fault code 53. We have changed the rec2 and rec1, we have also changed the drive contact tips,as they were burnt. This helped for 20 mins and then the same problem came back. Any ideas?