Questions tagged [common-wire]
The common-wire tag has no usage guidance.
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Can neutrals be landed in an old panel which acts as a junction box?
I have a metered panel which had been stripped down and wires jumped over to new panel. The feed is still here but also jumped over. Can I land my neutrals from the new panel inside of the old main ...
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Which Circuit Does this Switchbox Common Wire Belong To?
I'm replacing a single-pole switch with a Lutron Caseta, in a switch box that houses two switches, each on a different circuit. The old switch that I've removed was connected to two wires: line (red ...
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C terminal voltage on AC control panel
My smart thermostat shut itself down reportedly (as it ran some time on internal chargeable battery and I browsed through the settings) because the C terminal stopped receiving 24V power supply. That ...
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Can I connect my thermostat's R and C wires directly to the transformer?
One day my parent's furnace and thermostat stopped working. The thermostat is a smart thermostat that depends on 24volts to the R and C wire.
We measured voltage between the R and C wire and was ...
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Where do I connect the C wire in my furnace?
I am upgrading my thermostat to a Nest, and would like to add a common wire. My current furnace controller doesn't have a C terminal, but the current thermostat wire has 2 unused wires (black and blue)...
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