Where is the expansion valve located?

Where is the expansion valve located?

The expansion valve is situated in the liquid line between the condenser and the inlet of the evaporator. It operates on the opposite side of the system, relative to the compressor.

How do you unclog an expansion valve?

Place the bulb into hot water. This should cause the expansion valve to open allowing more refrigerant to pass through the TXV into the coil. Suction pressure should rise, and super heat should drop. Opening of the valve should be relatively quick.

How do you replace an expansion valve?

Part 1 of 4: Evacuating the system

  1. Materials Needed. AC manifold gauge set.
  2. Step 1: Identify the refrigerant.
  3. Step 2 Recover the refrigerant.
  4. Materials Needed.
  5. Step 1: Locate the expansion valve.
  6. Step 2: Remove the expansion valve.
  7. Step 3: Replace the O-rings.
  8. Step 4 Reconnect the expansion valve.

How much does it cost to replace an expansion valve?

A TXV expansion valve manages the amount of liquid refrigerant flowing through the air conditioning system, so if it goes bad, you’ll need to replace it to keep your AC functioning properly. Expect to pay an average of $400 to get the job done, but it may cost as little as $200 or as much as $700.

Can expansion valve be cleaned?

It is very difficult to determine if a Thermostat Expansion Valve is clean. The only way to be sure the valve is clean is to put it back into operation and run a system performance test. If there is any malfunction, the unit must be disassembled again to change the valve.

What can cause a stuck expansion valve?

Problem. As the expansion valve operates under high pressures and is temperature sensitive, improper working conditions, as well as impurities inside the loop, can cause its deregulation and malfunction.

How long do expansion valves last?

There isn’t a specific lifespan of the valve, it’s more just a wear and tear kind of situation. Obviously the more you use the air conditioning, the quicker it will wear down. Here’s a look at some of the signs you can watch for that can signal the end of your expansion valve’s lifespan.