Will this work without a C wire null

This unit gets power from the furnace/ac unit, not battery, so it needs the C wire (24VAC common or neutral) to get power.

Yes. It comes with a jumper that allows you to connect without a C. That said, by not having a C, you lose fan functionality when the system is not heating or cooling but that's typically not an issue.

“Will this work without a C wire”

Asked by Donger 6 years ago

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Honeywell Home - 7-Day Programmable Thermostat with Wi-Fi Capability - White-Front_Standard

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This unit gets power from the furnace/ac unit, not battery, so it needs the C wire (24VAC common or neutral) to get power.
Answered by Drew 6 years ago
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Yes. It comes with a jumper that allows you to connect without a C. That said, by not having a C, you lose fan functionality when the system is not heating or cooling but that's typically not an issue.
Answered by Phil 6 years ago
Sorry, there was a problem. Please try again later.