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Replacement Motor for Coach Steps Does Receive Power But Does Not Operate

Question:

I replaced the gear that had worn- so I also replaced motor now when I open coach door the underneath light comes on and there is power at the motor but not enough to power to even make the motor work even if its not mounted but hook to battery direct and it works perfectly on old and new motor switch power wires and both motors work properly help.

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Expert Reply:

Since you have tested your Lippert Replacement Motor for RV Electric Sliding Steps # LC301695 directly at your battery and found it to operate properly the issue you're having is likely to be related to the RV's wiring.

First, check that you have good ground connections for the motor at both ends of the RV's motor wiring. A loose connection, or the build up of dirt, grease or rust at the ground point could easily interfere with the electrical ground. This condition would still allow SOME current to pass through but not necessarily enough to actually cause the motor to operate. Check for any loose wires all along the wiring path and especially at the ground wires on the frame.

You can also inspect the connectors for signs of corrosion - even slight greenish or whitish discoloration - that could block the passage of the full battery current required to operate the motor.
Use a contact cleaner as required and perhaps an application of dielectric grease # LT37534 to protect those connections once they are clean and functional.

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