No power to thermostat after installing Nest thermostat.
#1
06-19-15, 01:49 PM
Join Date: Jun 2015
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No power to thermostat after installing Nest thermostat.
I installed a nest thermostat without much luck. Everything worked as far as connect ing it to my WiFi and temp settings but said that it was not receiving power to thermostat.
I did some research and found a blown 3amp fuse on the unit which I replaced.
Still does not work. AND old thermostat doesn't work either.
Please help! Thank you, Dying in Texas.
I did some research and found a blown 3amp fuse on the unit which I replaced.
Still does not work. AND old thermostat doesn't work either.
Please help! Thank you, Dying in Texas.
#3
06-19-15, 10:38 PM
Group Moderator
I'm a little confused.... how could the thermostat connect to your WiFi if it had no power ?
Is this a simple A/C system or a heat pump setup ?
If you tell us what color wires were connected to which terminals on the old thermostat we can go from there.
You may need a meter to check for 24vac between the R and C terminals at the air handler.
Is this a simple A/C system or a heat pump setup ?
If you tell us what color wires were connected to which terminals on the old thermostat we can go from there.
You may need a meter to check for 24vac between the R and C terminals at the air handler.
