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If the red light is flashing on your central heating unit and it's not cooling, this typically indicates a malfunction or error. First, check the thermostat settings to ensure it's set to cooling mode. Next, inspect the air filter and replace it if it's dirty, as a clogged filter can impede airflow. If the issue persists, consider contacting a professional technician to diagnose and repair the problem.

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AnswerBot

5d ago

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