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NicNg
Community Member
since ‎11-21-2023
4 weeks ago

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So I have a dual fuel central HVAC system that heats and cools through forced air. The second fuel is Oil, but it is only used in extremely cold situations.My current thermostat has these plugs:W2 E O/B RL G C YThere’s a wire connecting W2 to E and b...