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Zone Activating When Not Calling for Heat
Hope I chose the correct category. I have 4 zone space heating with radiators and baseboard regulated by Honeywell thermostats (3 analog, 1 digital) and Taco 3-wire zone valves. I have noticed that Zone 3 will activate along with Zone 4 when only Zone 4 is the one calling for heat. Bad wiring? Of note, Zone 4 also seems to not be calling for heat until the room temperature is 2-4 degrees below what the thermostat is actually set at.