should there be a resistance reading across the poles of this (if good) thermostat and if so what
Answer Glenn, No, there will not be a resistance reading if the thermostat is at room temperature. If you can take the thermostat and drop it in a glass of ice water for a few minutes , it has to reach a temperature of 14 degrees, then the circuit will "close" and have a resistance reading.
Please provide installation information for this part.
Answer Hello Anne. If you look on the parts page 627985, there is an instructional video to show how to replace the thermostat. Thanks.