Trace inaccurate readings and short cycling
A temperature discrepancy can relate to thermostat location, calibration, or a control problem, while short cycling may involve the thermostat or the equipment it controls. Record the displayed temperature, set point, and timing of system starts and stops. That comparison helps determine whether the thermostat is giving an unusual signal or whether equipment diagnosis is also needed. Internal wiring and electrical checks should be left to qualified service.
