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re: Need "C"Wire (5th wire) for Wifi thermostat.
Posted on 6/1/17 at 3:48 am to td1
Posted on 6/1/17 at 3:48 am to td1
Just went thru this, if it's an older unit it will not have the power to run wifi thermostat check how much power running to thermostat before you get too deep into. I installed three in my home and had to get a hvac guy out for the older unit due to the power supply to thermostat.
Posted on 6/1/17 at 7:17 am to Geaux1
Sent pic to Honeywell as they suggested, will see what they come back with.
Posted on 6/1/17 at 7:31 am to Geaux1
quote:
Just went thru this
Same. I tried installing an Ecobee 3 Lite this weekend, but when I pulled my current digital thermostat, there is no C wire-which seems odd since it has some non-battery power source.
The Ecobee comes with a kit to allow you to convert the system at the board. But when I pulled the panel off of my HVAC unit, nothing was marked with a C.
So I'm calling the local Payne dealer today to figure this damn thing out.
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