Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to
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I am looking to replace my old Honeywell thermostats with new smart thermostats (Amazon). I have 2 zones, 1 upstairs and 1 downstairs. Both thermostats are wired the same, with only a
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Old Honeywell 2 wire AC thermostat (with 1 extra wire behind) - can I modernize this with Ecobee? : r/ecobee
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