Since you can hear the motor working but the linkage isn't working that would mean the gear box is bad and you'd need to replace it with the part # LC379161 that you mentioned for your Kwikee 28 Series. view full answer...
The easiest solution to upgrade your WFCO model WF-8955PEC converter is to use the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 55 Amp, part # PD4655V.
This is a direct replacement for the converter/lower unit, so you would not need to replace your entire box and since it's designed to replace your WFCO converter, it shares the same dimensions and will fit in the exact same place as the old one. Installation is pretty straight forward, you'll need to unscrew and... view full answer...