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Honeywell CT87K installation - what am I doing wrong?
I am on my second brand-new out-of-the-box Honeywell heat -only CT87K from a big box store. I cannot make this model work.
I set the two dip switches to "on"; I read and followed the instructions and asked someone else to check what I am doing; I only have two wires, and I have reversed them, as if it would matter; and I have successfully connected and disconnected a more complicated Honeywell type RTH2300B and another digital thermostat multiple times without issue -- I can install and uninstall those other thermostats all day long and have them work without any fiddling.
My only success with the first CT87K I tried, after a lot of fiddling, was that it would be only calling no matter how I set the temperature.