My kickr suddenly developed a noise coming from the flywheel area. Almost sounds like a chugging sound, as if something has come loose. I have had to stop riding it as concerned about causing damage. I have contacted wahoo but the first reply was to grease the legs ? (Which I had already done), huge delay since that response. I have not taken the cover off as I want permission to do that from wahoo. I have searched google for a schematic to see what is behind the cover to no avail. Has anyone else experienced this? It is 11 months old and only done 1640 miles.