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What To Do If You Don't Have a C Wire For Your Thermostat

HeatingHelp.com
HeatingHelp.com Member, Moderator, Administrator Posts: 5
The common wire is the neutral wire from the 24V transformer that provides the power that WiFi thermostats require in order for their features to work. Most existing homes do not have a C wire since non-connected thermostats don’t require them. Read on.

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