Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
East Coast Automotive Services
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 East Coast Automotive Services, 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.
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Liz Wezwick, 09/08/2021
Very helpful techs and quick turn around to get the ac installed. Had the unit 1 month and everything is running great. Would definitely refer to others.
Jessica Jimenez PT, DPT, MTC, CSRS, 08/24/2021
My experience was impeccable from start to finish. The Sales Representative was professional, knowledgeable and made an excellent recommendation for the replacement of my unit. The replacement cost for my unit was within my budget. The unit was installed as scheduled. The installers did a flawless job. They were exceptional and didn’t take any short cuts. They were experts. My home is very comfortable. I appreciate ECM and recommend them highly.
Mercy Selver, 07/28/2021