Ap 121c motor turning in reverse

[Zachsea]

Have an ap 121c that was initially making the motor spin a quarter turn then when motor was swapped for new one and it now goes counter clockwise a full turn. Have found no bad spots on the harness as well. Any help is greatly appreciated at this point. 

[AZVendor]

It's wired backwards or it's a bad motor or for the wrong machine.

[lacanteen]

The motor should be blue and white, not gray and white. Look at the motor wires. There should be a large terminal and a small terminal making it an idiot resistant connection. 

[Zachsea]

Its both of what you just described. I havent replaced the shelf harness it self but maybe theres a bad spot on it im just not seeing.

[Corvus Corax]

1. Move it to another position and see if the problem follows.

2. Flip the wires and see if that corrects it.

3. Buy another motor.

[Snickers]

With me being a tightwad and having too much free time these days I tried an experiment on a LCM at the shop. I prefer to have a dual coil machine but converting one gets expensive buying all the butterfly motors. So my theory was to take a spare shelf harness cut the leads off and use them as a jumper wire and hooking into a second motor backwards. I thought for sure when making the selection it would feed the 2nd motor as well but that it would turn backwards. It unfortunately did not. 

[AZVendor]

Wiring a motor backwards will cause feedback to the logic board and cause other issues and maybe logic board failure.

[Snickers]

On 11/29/2020 at 10:33 AM, AZVendor said:

Wiring a motor backwards will cause feedback to the logic board and cause other issues and maybe logic board failure.

If it would of worked I would of left it. Good to know. Thank you