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The Eric
I think I have it....
Should take 10 minutes.... This is what it looks like.

I think I have it....
Look and see if there's a low water cutoff float switch in your tank - if the water is causing too much agitation it might be bobbing and shutting off the bay.
Now bay 3 is taking money, counting the money, but not putting any time on the door (therefore it won't work). What do you guys think?
10-06-2015, 02:50 PM.... Does your bay timer require a timer in the equipment room?
OK, Dan may have identified the problem. My baydoors are D/H, & have timers on them. The GinSan pumpstand has timers as well. Evidently the timers are working against each other (correct me if I'm wrong, Dan) & this is probably what is making the GS-27D's go out. Wish someone, mainly my distributor, who came 3x, could've let me know that!!!