24 volts supply

by Robert
(Spokane, WA)

The low voltage supply is present at the outside unit. the hot line which runs to the contacter only reads 24v when it is separated at the wire nut. Again, it will read O when the two wires are connected and 24v when they are separated.
The Contactor, capacitor, and fan motor have been profesionaly tested and passed.

Is it a relay or pressure switch or can the thermostat do
this.
Goodman pump
model# GSz130361AB