need help reversing 12v motor

Thread Starter

dolphinscott

Joined Apr 3, 2021
1
I am wiring a step for my RV, It had a automatic open close mechanism that has failed, I tried rewiring it using a dpdt momentary rocker switch I crossed the negative and positive and connected the 12v and negative to the center "posts" and it won't work, I wired the switch as a single switch and it works fine, from what I've learned and read it should reverse the polarity and the motor
it's a on.off.on switch help please
 

djsfantasi

Joined Apr 11, 2010
7,842
Are there any markings near the contacts? Or a diagram of the contacts? The common terminals may not be the center terminals...
 

KeithWalker

Joined Jul 10, 2017
1,919
I experienced something similar my self. Check the contacts with a continuity checker or ohmmeter. Some of them have contacts that don't close the way you would expect. I have no idea why they make them with such a strange configuration. If you have one of the "strange" ones, you can't use it for reversing the motor.
 
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