If you're posting a request for installation help, please provide as much info about your system as possible. For example, for help regarding connecting a smart thermostat, please include details about your system including whether you have gas/electric, heat pump, number of heat stages, A/C condenser, etc.

i have a rheem 92-2421-77 unit that i want to connect the ecobee 3 to. The c wire is not hooked up?

97r8297r82 oklahomaMember

I have a spare blue wire in the thermostat wire. This wire is loose on both ends. The unit has a 4 stage fan for heat and 2 stage for cool if I think. We have been running with a simple thermostat for a long time but wanted to upgrade?

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