This is a 20 ton compressor on a Trane SFHC AHU. Its the first stage compressor with unloader. It was blowing the control fuse, and I traced the problem to the internal temp switch (schematic shows 2 internal switches). 15 Ohms to ground.
It looks like the plate where all the terminals are located can be unbolted from the compressor. I am wondering if this is just a Klixon on the back of the plate, or if its somehow wound into the motor.
I'm hoping to change this small part rather than the whole compressor.
I'm hoping some of you out there have dealt with this before.
Thanks for any info!