First check the free things. You've already made sure the 12V breakers are set by pushing in on them, if one is tripped it extends out about 1/8"and move inward when needing reset.
Next is the door magnetic switch, the magnet is mounted on the bottom of the screen door, the magnetic/reed switch mounted on the stepwell wall. The magnet should just touch the switch, and the 2 wires connected to the magnetic switch, clean and tight connections. Use a multimeter to test for the presence of 12V.
Next is the 2 ground connections for the steps, they too must be clean and tight.
Exercise care when working near the steps, they are always "hot"; the controller switches motor direction by switching the ground,, and can thus move unexpectedly and are powerful enough to sever a finger..
This is the
Kiwkee Products Service Training Manual to assist you in diagnosing and rectifying the problem.
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2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA.
"We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln