701-223-9728 | 2121 Lee Ave
Unit B, Bismarck, 58504
Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
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 Auto Therapy, 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:
Bo Wright, 05/14/2021
In Bismarck on a Monday in April 2021 returning home to western ND. Our van began to sputter as we prepared to leave Sam's Club. I immediately began to look for an auto repair shop close to Sam's. Auto Therapy reviews were great and close to Sam's, I called Tim the owner, he said bring it in and I will take a look at it. This guy was amazing! He knew we were stranded - put the car on the lift - diagnosed the problem and proceeded to look for parts. We had to go home, so we had to rent a car to get home. Not only did he get the van scheduled to be fixed asap, he said he had to go to Williston on Saturday and would drive the car back to us in Watford. This guy is the real deal - knowledgeable, honest and a has a great shop and staff. I have never in my long life had such an amazing experience with any business. There are not enough words to express my gratitude Tim Geloff with Auto Therapy!