I have 2 AC units and I’m installing Ecobee thermostats. The upstairs unit is on the main panel and I was able to turn it off and install the thermostat.
I turned off the main breaker and the downstairs unit continues to run so it’s obviously not on the main panel. Outside by the unit it is hooked up to a box from the Electric company that says shouldn’t be opened.
I’ve had the thermostat replaced on this unit before and I know they didn’t call the electric company to open this box.
Is there somewhere else this unit may be wired to or somewhere else it can be turned off?