When your whole-house air conditioner breaks down, your home becomes warm during a hot weather season in Northern Virginia.

You must know the common causes of AC failures to stay cool and comfortable in your home.

Whether it’s due to some general maintenance or more involved mechanical troubles, knowing the top causes will help you catch it before it is too late and end up costing a lot of money in repairs.

We break down the top 50 causes of your whole-house AC failure so you can be equipped with all the necessary information to ensure your air conditioner runs year-round.

Here are 50 different ways your whole-house AC systems fail:

  1. Dirty air filters

  2. Refrigerant leaks

  3. Faulty thermostat

  4. Blocked condenser unit

  5. Dirty condenser coils

  6. Electrical issues

  7. Tripped circuit breaker

  8. Blown fuses

  9. Faulty capacitors

  10. Broken fan motor

  11. Malfunctioning compressor

  12. Clogged drain lines

  13. Frozen evaporator coils

  14. Poor insulation

  15. Leaky ductwork

  16. Oversized AC unit

  17. Undersized AC unit

  18. Dirty blower motor

  19. Worn blower belts

  20. Inadequate ventilation

  21. Corroded wiring

  22. Faulty relays

  23. Damaged duct insulation

  24. Improper installation

  25. Aging system components

  26. High humidity levels

  27. Pest infestations

  28. Incorrect thermostat settings

  29. Power surges

  30. Frozen condenser unit

  31. Blocked air vents

  32. Dirty air ducts

  33. Faulty limit switches

  34. Inverter issues

  35. Improper refrigerant charge

  36. Compressor overheating

  37. Airflow restrictions

  38. Damaged fan blades

  39. Insufficient drainage

  40. Control board failures

  41. Thermostat wiring issues

  42. Defective sensors

  43. Heat exchanger problems

  44. Voltage fluctuations

  45. Poor maintenance practices

  46. Improperly sealed windows

  47. Excessive dust buildup

  48. Inconsistent power supply

  49. Software glitches

  50. Lack of regular inspections

Whole-house air conditioning system failures can cause higher energy costs and discomfort.

Regular upkeep and attention to issues can keep your AC operating reliably and smoothly.

Get help with your AC system today!

Servicing Fairfax, Loudoun, Arlington, and Prince William CountiesWE ARE MASTER ELECTRICIANS & HVAC TECHNICIANS

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PRO Electric LLC dba PRO Electric plus HVAC | Website Design by HILARTECH, LLC | © All Rights Reserved

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PRO Electric LLC dba PRO Electric plus HVAC

Website Design by HILARTECH, LLC | © All Rights Reserved