I have a rupes lhr15II that is about 4-5 years old with maybe 2 hours max running time on the machine..it has been about a year since I last used it and it is not working. I can hear it straining and it seems like it is almost wanting to start up but doesn’t. I did try turning the orbital part but it doesn’t want to run. I tried calling rupes but they are closed until the beginning of next year. Does anyone on this forum know if this is a common issue and if so is there a quick fix?