We have a GMH950703BX model goodman 2 stage propane furnace. I have replaced the thermostat but I am unsure if the 2nd stage is working. How do I confirm this and set the thermostat for the proper 2nd stage settings? The thermostat is a trane.
Here is the manual..
I have it enabled, just not sure if I need to modify any other settings and how to confirm it's working.