50 Questions
Read All Questions & AnswersCan this thermostat work without a common wire? My thermostat hookup only has 4 wires
1
Hello! You'll need to use the included Power Extender Kit (PEK). Learn more about installation with the PEK, here: https://support.ecobee.com/hc/en-us/articles/360009155051-Installing-your-ecobee-thermostat-with-the-Power-Extender-Kit-no-C-wire-
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