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3H AC of Tampa

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Serving Tampa Bay Since 1972

AC Running Constantly? 10 Common Reasons Why

AC Running Constantly? 10 Common Reasons Why | 3H Contracting Inc.

Summer is approaching in Tampa, and with it, the inevitable rise in energy expenses to keep your living space cool and comfortable. If you’ve observed your AC unit running continuously or for extended periods, it might indicate an underlying issue requiring AC repair. This constant operation can result in a surge in your electric bill, signaling the need for attention. Continuous HVAC operation on hot days is not normal and may point to problems, especially in older homes lacking sufficient insulation.

Top 10 Reasons Your AC is Running Constantly

  1. Dirty Evaporator Coil: The evaporator coil in your HVAC or AC system accumulates dust, hair, and debris over time, affecting airflow. Regular filter changes help, but periodic cleaning is essential.
  2. Clogged Air Filter: Air filters safeguard your HVAC system, but when clogged, they hinder performance. Replace filters every 45-90 days, ensuring your system runs efficiently.
  3. Restrictive Filters: Higher MERV filters can impede airflow. If allergies aren’t a concern, opt for lower MERV filters to maintain better airflow.
  4. Frozen Evaporator Coil: Warm air from vents indicates a frozen evaporator coil. Turn off the system and seek professional assistance.
  5. Low Refrigerant Charge: HVAC systems are closed systems, so refrigerant loss suggests a leak. Address leaks promptly to prevent increased workload and inefficiency.
  6. Faulty Thermostat: Malfunctioning thermostats can cause continuous operation. Ensure your thermostat is functioning correctly.
  7. Leaky Ductwork: Duct leaks result in cool air loss, leading to prolonged unit runtime and higher energy bills.
  8. Dirty/Blocked Condenser: The external AC unit’s coils accumulate dirt over time, hindering proper cooling. Keep the area around the unit clear for optimal performance.
  9. Blower Motor Issues: A malfunctioning blower motor decreases airflow and cooling efficiency. Regular maintenance and filter changes help prevent issues.
  10. Incorrectly Sized Units: Units that are not correctly sized for a space can lead to excessive runtime. Consider the size of your HVAC system in relation to your living space.

Preventive measures, such as regular maintenance and filter changes, can often mitigate these issues. If your AC is persistently running, reach out to us for a possible free solution over the phone or to schedule a technician visit.

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Phone: 813-979-4208
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