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tpap88
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tpap88

Anon

[HVAC] no c wire for wifi thermostat

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I need a c wire for a new honeywell wifi thermostat. My 4 wire system is missing the c wire. There is still an old 2 wire dehumidifier thermostat next to the ac/gas furnace thermostat. I went under the house and found it was hooked to a transformer. Can I use the old two wire for my c wire?
System

Anon

This topic has been closed. Reason: More suitable topic exists

See: »[HVAC] C-wire wifi thermostat thread