How do I adjust the temperature on the T4 Pro thermostat?
From the home screen, press the Plus or Minus buttons to adjust the temperature to your desired setting. The thermostat will hold this override temperature until the next programmed time. You can also use the Hold button to switch between temporary and permanent holds, or press the Cancel button to cancel all holds.
From the official Honeywell T4 Pro Thermostat manual, page 2
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