Honeywell Thermostat Triangle Symbol - Ground Warehouse Wwwfedexjobscompitpoint Search Result I have a honeywell home pro series thermostat which is working, however i noticed that there is a triangle with an airheatman furnace, a/c and heat pump specialist. Read the manual it will tell you lazybones. Looks like a t6. i think maybe you can tap it to get details, or maybe under menu > equipment status will tell you. Mine does that once in a while. What does the triangle and 2 small dashes symbol mean on the t4 programmable room thermostat?
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