Auto AC Evaporator Repair
in St. Paul, MN

Car AC Evaporator Service

Many times car owners can’t determine what the issue is with their AC, which is perfectly understandable. There is a lot going on with these systems. To know if the AC evaporator is the problem or something else, requires a thorough inspection of the system, including:



• Visual Inspection: Checking for signs of damage, corrosion, or leaks on the evaporator coils and other components.
• Pressure Testing: Using a pressure gauge to check for refrigerant leaks or blockages in the system, ensuring the system is functioning correctly.
• Temperature Testing: We use an infrared thermometer to check the temperature of the air coming out of the vents, which can help identify cooling issues.
• Leak Detection: We use a leak detection kit to identify refrigerant leaks, ensuring that any leaks are found and repaired.
• System Performance Testing: Before wrapping up, we'll ensure the air conditioning system performance to ensure it's operating at its best.
  

The Role of the AC Evaporator in Your Vehicle's AC System

Located inside the vehicle’s cabin, the evaporator is a crucial component of the car's AC system. It is responsible for absorbing heat from the air circulating through the AC system.



As warm air from the cabin passes over the evaporator coils, the refrigerant within the coils evaporates from a liquid to a gas, effectively removing heat and lowering the air temperature before it is blown back into the interior.

This process results in the circulation of cold air back into the cabin, maintaining comfort during hot weather. The evaporator not only cools the air but also dehumidifies it, reducing moisture levels and preventing condensation on windows.

Signs of a Problem with Your Vehicle AC System

• Reduced Cooling Efficiency: The air conditioning system may not cool the air effectively, leading to warm air blowing from the vents.
• Unpleasant Odors: A musty or moldy smell can indicate mold or mildew growth on the evaporator coils, which can be both unpleasant and unhealthy.
• Fogging on Windows: A leaking evaporator can cause increased humidity inside the cabin, leading to fogging on the windows and reduced visibility.
• Frequent AC Compressor Cycling: The compressor may turn on and off frequently due to low refrigerant levels caused by a leak in the evaporator, indicating a problem with the system.
• Visible Leaks: Refrigerant leaks can be seen as an oily residue or a sweet, chemical smell.