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So my heater recently started turning back on for a second or two immediately after turning off when it hits the set temperature. I have a Lux TX9600TS thermostat that was installed about a year ago, I looked around in the settings but don't see a setting for this or why it would have all of a sudden changed. To be clear, when my heater reaches the set heat it turns off, then within a second or two turns back on for a second and then off again. Anyone have any ideas? Thanks for the help