603-668-3856 | 121 Loring St, Manchester, 03103
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 DynaTune, 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:
State Inspection Special $29.95view coupon
Includes Emissions Test. Cars & Light Trucks only.
Deborah Odette, 06/26/2020
I was leaving on a weekend trip with my grandson and nephew to Boothbay Harbor when I went to use my brakes and my foot went to the floor. After going to a couple of places I was referred to Dynatune. They were busy but got me in and two hours later we were on our way. The guy said it was a good thing I got it checked my tire would have caught on fire. I am so thankful for their awesome service.