I had my dealer install a block heater and a transmission oil heater in my 2032R. I plugged both of them in to test them. The block heater got hot to the touch in a few minutes, the transmission oil heater did not. I tested for continuity, made sure the plug was making contact, all seemed good. I left it plugged in for an hour and it was still cold to the touch.
I tried both with my inverter generator. When I plug in the block heater, the RPMs surge quite a bit, sensing the load. When I plug in the transmission oil heater, the RPMs raise slightly...very slightly. It's hard to notice, but definitely there. So something is happening. I'm just not sure what. I tried trimming some rubber off the plug in case the contacts were too deep, but that didn't change anything.
So is it possible that this thing is defective? How would it even be defective, it's just a metal loop!