Issue
I am unable to get the aux heat to engage in test mode nor in normal operational mode (raised the the thermostat setting 10+ degrees over the room temp).
Background
I have Nest 3 learning thermostat installed and it was working correctly with my Goodman electric heat pump/ac unit. Yesterday I replaced the Goodman system with a Trane electric heat pump/ac unit.
Debugged
I swapped out the NEST with my old Honeywell thermostat and the it operates properly (cool, heat and Aux heat). I reinstalled the Nest . Wired as it the same as my original Goodman unit. (see pic). I have done a factory reset and walked through all of the setup steps (including heat pump balancing). No luck getting the aux heat to run (normal heat and cool work fine). Any ideas?
