This is what I found when I went to check it. Sure enough the machine is turning on & off, there's a loud buzzing sound coming from the chassis. The M relay is lighting up like the 4th of July. Here's what I've done so far...
Change M relay, same thing.
Remove chassis and put on the one from lane 2 that was working fine. No more relay chatter but still will not cycle. It doesn't even try, the sweep contactor doesn't move at all. However, I can run the sweep with the sweep run switch and the SA switch. If I run it down to 1st guard, it will cycle from there. Pushing the cycle button on the back control panel doesn't work either. It's almost like it's in Instructomat mode.
So now I unhook #5&6 wire from A&MC box, hook them together to bypass manager control and still no luck. Jamie at Stahls said to also check the manager switch and wires on the back panel, so I took them out completely and still didn't work.
I noticed that there was that sweep relay in the channel that stahls sells. To be quite honest they have failed on me causing a lot of problems so I remove it and rewire it to factory specs and then convert to expander. Same thing. One thing I have to try is a different sweep motor because I have a national sweep motor on it and there no CENT switch because of that relay in the channel and i forgot that when setup the normal way you need a cent switch. I'll try that in the morning (wait it is morning already) and see what happens. Throw me some ideas in the meantime cuz the contactor isn't pulling in at all and I don't think thats my main problem, but I do need to change it anyway. Sounds like an instructo problem, any other way it can get that signal without manager control hooked up?? I have a full house Thursday so wish me luck!
Charley
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