We cover all these problems with the nest 3rd generation thermostat and give you. You should verify that the x wire on the old thermostat is not a common wire.
Nest White E Thermostat With Wifi Compatibility Model T4000es No Power H11
Nest thermostat no power. No power to w 1 wire detected. Turn off the power to your heating and cooling. Nest button doesnt click quite right or the thermostat just wont sit right on the base. Cooling is not on or turns off intermittently when the. I believe my heat and cooling is 1 stage. Some heat pump installations may have the auxiliary heat connection labelled as x w1 or w2 on the thermostat.
My nest thermostat not working message e4 no power to rh. Cooling is always or intermittently on when the nest thermostat is not calling for cooling the nest thermostat display background is black. If your system works as it should with your old thermostat your nest thermostat may be damaged and needs to be replaced. Your nest thermostat is physically detecting a wire in the w 1 heating connector but isnt detecting any power to it. Learn about the common wire and why a nest thermostat may need one in most cases google nest thermostats can charge their built in battery using your systems heating and cooling wires. When x w1 or w2 is an aux wire.
The thermostat has been working for years. If there is a common wire installed the nest thermostat will not power share. But two sets of 4 wires as follows. 2 red into rh two read more. Turn off power to your system at the breaker box or system switch. No power to the r wire.
Gallery of Nest Thermostat No Power
