Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Andersen's Foreign Car Service, LTD
Your car or truck's AC system is under extreme pressure and the thermal expansion valve or orifice tube monitors the amount of pressure and the temperature of your A/C system. It calculates the precise amount of refrigerant that can safely go into the evaporator. A failing expansion valve or orifice tube often causes a vehicle's air conditioner to blow hot air.
Replace or Repair
- Expansion Valves: Too much refrigerant causes your evaporator to get too cold whereas too little refrigerant would result in inadequate cooling. The expansion valve is a complex valve that regulates refrigerant flow. This process of metering the refrigerant adjusts the flow according to the temperature of the refrigerant in the evaporator coil. Talk to one of the pro mechanics at Andersen's Foreign Car Service, LTD, as this part can be replaced on its own and does not require the entire replacement of the AC assembly.
- Orifice Tubes: Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen. Often fixing a "bad orifice tube" requires replacing the entire evaporator assembly.
More AC Repair Services:
Simply the best in Denver.
Chas Taylor, 05/04/2022
The team at Andersen's is second to none with regards to knowledge and customer service. They were able to diagnose and repair a couple of issues for me that other specialty European shops couldn't solve on an BMW X5 Turbo Diesel. The team at Andersen's didn't throw parts at the problem but instead were able to diagnose and repair at a fraction of the cost and time of any other shop that I have worked with. Without a doubt, they know European vehicles better than most in the area and their service and care is TOP NOTCH! They've won my loyalty for all routine and specialty maintenance moving forward.
Mario Brown, 04/14/2022
Super nice staff, in and out quickly. What more can you ask for?
Daisy Keys, 04/14/2022