Air Conditioning Repair for 1234yf and 134a
We are car air conditioning and heating specialists. Air conditioning repair isn’t straight forward, anytime you have a closed system with many (hard to reach) components, diagnosis becomes more difficult. We are experts with specialized equipment for air conditioning repair with 134A and 1234yf. Did you know that we use dry nitrogen gas when we test for leaks? Replacing the AC lines that transport the refrigerant from component to component is a very expensive repair. We don’t have to replace the entire AC line. In addition to repairing and replacing parts of your AC system, we also fix leaks. We replace only the defective portion of the AC line, which means saving you money.
TXV
The TXV (thermostatic expansion valve) controls the rate the refrigerant flows into the evaporator. It adjusts the flow of liquid refrigerant to the evaporator ensuring efficiency. By controlling the amount of refrigerant, the TXV keeps the evaporator full of either 134a or 1234yf. It prevents liquid refrigerant from returning to the compressor (a condition known as “floodback”). This maximizes the efficiency of the heat absorption in the evaporator. To accomplish this, a sensing bulb measures the temperature of the refrigerant vapour exiting the evaporator. It then sends a signal to the diaphragm to adjust the opening of the needle valve, which in turn controls the refrigerant flow. It also ensures the refrigerant is completely vaporized before it leaves the evaporator, protecting the compressor from liquid refrigerant.
By the Parts
In addition to the AC lines that transport the refrigerant, you have the following: Whether you have 134A or 1234YF refrigerant you have these too.
AC Compressor – compresses cool low-pressure gas into a high-pressure, high-temperature gas. This will also likely be the most expensive component of your air conditioning repair.
AC Condenser – Refrigerant is cooled and turned into a high-pressure liquid. The liquid refrigerant passes through the receiver dryer (or accumulator in systems using an orifice tube), which filters and absorbs moisture.
Expansion Valve or Orifice Tube – Depending on the vehicle, it may have a thermostatic expansion valve (TXV) or an orifice tube. This component reduces the pressure of the liquid refrigerant, causing it to expand and cool further. This process turns the refrigerant into a low-pressure, cold mist before it enters the evaporator.
Evaporator – Located inside the vehicle, usually under the dashboard, the evaporator absorbs heat from the car’s interior. As the cold, low-pressure refrigerant passes through the evaporator coils, cabin air is blown over these coils, cooling the air before it enters the vehicle’s interior.
Receiver-Drier or Accumulator – These store the refrigerant, filter out debris, and remove moisture. The receiver-drier is used in systems with an thermostatic expansion valve, while the accumulator is used in systems with an orifice tube. Removing moisture is critical because water in the system can freeze and cause blockages or damage the system.
Pressure Switches – Additionally, these monitor the pressure of refrigerant in different parts of the system to ensure it operates within safe limits. They will shut down the system if pressure is too high or too low, preventing damage to other parts.
Whether you’re air conditioning repair search was for rusted AC lines or just air conditioning repair, we can perform the car air conditioning repair you need. We specialize in heating and cooling for your car and have specialized equipment to support refrigerant 134A (cars made from 1994) and 1234yf (Select cars since 2012).
Better Air Conditioning Repair
25+ years of experience differentiates us from the rest.
Our AC repair is the best and we replace only the parts that need it, including the section of AC lines that are defective without replacing the entire line. See us first, we’ll get your air conditioning working again quickly.
