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Why does my air conditioner trip the circuit breaker ?

If your air conditioner is tripping the circuit breaker, it indicates a fault or overload condition in the electrical system. Several factors can contribute to this issue, ranging from electrical problems to issues with the air conditioner itself. Let’s explore in detail the possible reasons why your air conditioner might be tripping the circuit breaker:

1. Electrical Overload:

  • Compressor Issues:
    • A common cause of tripping is an electrical overload in the air conditioner’s compressor. This could be due to a malfunctioning compressor, damaged capacitor, or a short circuit in the compressor wiring.
  • Solution:
    • Consult with a professional technician to inspect and repair or replace the compressor components.

2. Dirty or Clogged Filters:

  • Restricted Airflow:
    • Dirty or clogged air filters can restrict the airflow through the air conditioner, causing the system to work harder and draw more current.
  • Overheating:
    • Overheating may occur, leading to an increased load on the circuit and tripping the breaker.
  • Solution:
    • Regularly clean or replace air filters according to the manufacturer’s recommendations.

3. Refrigerant Issues:

  • Low Refrigerant Levels:
    • Insufficient refrigerant levels can cause the compressor to overheat and draw excess current.
  • Solution:
    • Consult with a professional technician to check for leaks, repair them, and recharge the refrigerant to the recommended levels.

4. Faulty Capacitors:

  • Start or Run Capacitors:
    • Faulty start or run capacitors can result in irregularities in the electrical current, causing the breaker to trip.
  • Solution:
    • Have a technician check and replace faulty capacitors.

5. Wiring Issues:

  • Loose or Damaged Wiring:
    • Loose or damaged wiring within the air conditioner or the electrical circuit can create resistance, leading to increased current and tripping the breaker.
  • Solution:
    • Inspect and repair any loose or damaged wiring. Ensure all electrical connections are secure.

6. Refrigerant Coil Freezing:

  • Insufficient Airflow or Low Refrigerant:
    • Inadequate airflow or low refrigerant levels can cause the evaporator coil to freeze, leading to increased current draw and tripping the breaker.
  • Solution:
    • Address issues with airflow and refrigerant levels, and defrost the frozen coil.

7. External Factors:

  • Extreme Temperatures:
    • Operating the air conditioner in extremely high temperatures can increase the workload on the system and result in circuit overload.
  • Solution:
    • Consider providing shade or insulation for the air conditioning unit, especially during peak temperatures.

8. Age and Wear:

  • Old or Worn Components:
    • As air conditioners age, various components, such as capacitors and wiring, may wear out, leading to electrical issues.
  • Solution:
    • Regular maintenance and timely replacement of worn components can prevent electrical problems.

9. Tripped Breaker:

  • Intermittent Issues:
    • In some cases, the breaker itself may be faulty or have an intermittent issue, causing it to trip even when the electrical system is not overloaded.
  • Solution:
    • Consult with an electrician to inspect and potentially replace the circuit breaker.


Tripping of the circuit breaker in your air conditioner can be caused by a variety of issues, ranging from electrical overloads and faulty components to issues with refrigerant levels and airflow. Addressing these problems often requires professional inspection and maintenance to ensure the safe and efficient operation of your air conditioning system.

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