hello all, picked up 2 machines a select-o-matic wb60-k6-d and a vendo h90b. the westi works ok just needs a good cleaning. the vendo works but the compressor does not shut off no matter how far I turn the knob either direction (it will cycle), maybe this is normal. any tips on what to clean the metal surface and shelves with? I was going to just stickem in the diahwasher and pullem out before the dry cycle.