Hi Dan, we solved the problem by disconnecting the 'C' wire. The
thermostat now turns on the A/C, it stays on and it is working properly.
Is there any disadvantage to not connecting the 'C' wire?
Hi Cooling Wizard, will this solution of connecting the Y and R wires
together solve the problem of the Nest thermostat (2020) cooling count
down, turning on and immediately shutting off, with no power and no
connectivity displaying? All wires are pr...
