Auger motor quit working. Took it down to the shop for bench test. It worked but awful noisy ( 1994 model ). Gave $130 for a new one. Got it in but still no go. I thought vacuum switch ? hey. I took the vacuum hose off and the auger motor started working again. Stopped in for a new vacuum switch, $34. Looked like a groan to replace so just hooked it up hanging loose. Still no go. Anyone know what I'm missing ?