Turn off power to your system at the breaker box or system switch. There is a breaker box attached to it on the wall outside.
How I Fixed The Nest Thermostat E Error E195 No Power To R Wire Detected Problem
No power to nest thermostat. I just installed a nest thermostat. If your system works as it should with your old thermostat your nest thermostat may be damaged and needs to be replaced. Remove the wire in the w1 terminal straighten it and put it back in as far as it will go. Nails pests like mice and rats and corrosion can all be a contributing factor. You should verify that the x wire on the old thermostat is not a common wire. You may need to.
If there is a common wire installed the nest thermostat will not power share. Your thermostat should pop. Turn off the power to your heating and cooling system at your breaker. I have a bryant model 561cj060 h ac. Grip the metal ring of your thermostat and pull it gently towards you away from the wall. I had to turn read more.
When x w1 or w2 is an aux wire. Some heat pump installations may have the auxiliary heat connection labelled as x w1 or w2 on the thermostat. The thermostat says there is no power to the rc wire. Another reason why theres no power to the thermostat could be due to a bad transformer or even a faulty wire running from the thermostat to the transformer.
Gallery of No Power To Nest Thermostat
