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National 147 motor issue


axel77

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I was wonderingif anyone might know the solution to this issue. I have a National 147 that every motor is doing the same thing. They all turn one full turn and when you try again it turns quick and stops and sometimes after you do a test and try the second time it say :Make Another Selection".  I have checked everything.  Replaced the all boards disconnected every wire and board and tested each shelf individually. I tried new motors and nothing.I unglugged all motors and tested them individually.  Dont find any issues with the wiring.  Im stumped. Please help.

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If you still have the original shelf contact-type connectors on your shelves then that is probably where your problem is.  Those connectors can be replaced with a kit that hardwires the shelves to the machine harness which eliminates the shelf contact problems.  I can send you a kit for it if you'd like.

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