There can be several reasons why the cooling capacity of your air conditioner has decreased after repairing it. Here are a few possible explanations:
Improper Repair: If the air conditioner was not repaired correctly, it could lead to a decrease in cooling capacity. Issues such as incorrect reassembly, improper installation of components, or improper refrigerant charge can affect the system's performance.
Undetected or Additional Problems: It's possible that the initial repair did not address all the underlying issues. There may have been other problems in the air conditioner that were not initially identified or repaired, which could impact its cooling capacity.
Airflow Restrictions: Air conditioners rely on proper airflow to effectively cool a space. If there are obstructions or restrictions in the airflow, such as clogged filters, blocked vents, or damaged ductwork, it can significantly reduce the cooling capacity of the unit.
Insufficient Refrigerant Charge: The refrigerant charge level in an air conditioner needs to be properly balanced for optimal performance. If the refrigerant charge is too low or too high, it can impact the cooling capacity of the system. This issue could arise if the refrigerant was not properly recharged during the repair process.
Age and Wear: If your air conditioner is old or nearing the end of its lifespan, it may have naturally diminished cooling capacity due to wear and tear on components over time. Repairing certain issues might improve performance temporarily, but the overall efficiency and cooling capacity of an aging unit may be limited.
To address the decreased cooling capacity, it's recommended to contact the technician or company that performed the repair and explain the issue. They should assess the system again to identify any potential problems or errors. If necessary, consider seeking a second opinion from another qualified HVAC professional to ensure a thorough diagnosis and proper repair.