Posted November 14, 201014 yr I have had C4 throughout my home for the past 4 years. I wanted to install the C4 thermostats (3), but was told by my dealer that I could not because my thermostat wiring included only the red, yellow, white, and green wires; apparently no common wire (?). I believe I have read within this forum where others had the same issue, but a solution existed. If this is true, I would like to utilize the thermostats......please let me know if there is a "work-around" solution. Thanks all.
November 14, 201014 yr you should be able to do this with just the 4 wires. its described in the install manual
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