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The high-limit switch protects your home from furnace overheating and fire. It shuts off the burner when temperatures get too high. Common causes for it to trip: restricted airflow, faulty blower motor, dirty heat exchanger, or incorrect thermostat settings. For proper furnace maintenance and service, call Diagnostic Heating and Air Conditioning at 240-786-8491 to book an appointment. #FurnaceSafety #HeatingRepair #HomeMaintenance #HVAC #Airflow | Diagnostic heating and air conditioning LLC
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