Best Auto Repair, Hagerstown

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Call us for all your car needs! 301-733-1300

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 H & S Automotive, 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:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services

ASSOCIATIONS

  • ASE (Automotive Service Excellence)
  • Jasper
  • NAPA
  • BG Products
  • Car Care Aware

Testimonials

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    A very friendly business and hard working crew. If you need work done on your vehicle check them out. John will help you get her done.

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    The service at H & S was excellent! I called one day and my car was dropped off and fixed the next! Gary and Tim are very knowledgeable and know what they are doing. I highly recommend H & S for all your vehicle needs!

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    I like an automobile shop where I know I'm going to get an honest repair and input on anything else my car may need to stay dependable, this is one of a few shops like this. Thanks for the great work you do.

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    Don't think twice you found your mechanic. I love H & S they have to be the most friendly, efficient, and honest people. The owner John gets to know you and your car. He is always going above and beyond to make sure that your problem is fixed. Always making sure that you get the best prices for the work needed. Definitely not afraid to get his hands dirty. Gary the mechanic is always pleasant and extremely informative and won't stop until he's postive the job is satisfactory. Tim in the main office he is a breath of fresh air he makes the first moment you call inviting. He always has a listening ear to what's going on and gets you in the shop quick. The greatest thing about them all they don't only tell you what's wrong but they explain everything to you so you can have an understand why your car needs the repair.

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    Awesome customer service, thank you again Tim. I will definitely recommend and bring my vehicle back to them in the future. Fast, friendly and helpful service.

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    H & S Automative accomadated us for a walk-in visit due to our AC failing on a long road trip. They had us in and out in and hour. Genuine people. Would highly recommend.