3rd gen Nest Learning thermostat keeps short cycling for 3 minutes with a 'Delayed for 3:00' countdown. Nest support is no help. Voltages and currents are well in spec with a C wire. Nest support won't login to the device to check health and figure out the trigger for these short cycling issues. The only option one has is to call in a Nest Pro, device well in warranty. Reset it once and problem went away but returned in a month. For that pro service call price I might as well switch to Ecobee.