Do you need to change the expansion valve on an AC unit?
Also, when changing the compressor, replacement of the expansion valve is usually a requirement for warranty coverage of the new compressor. Remove or discharge any remaining refrigerant from the AC system.
How much does it cost to replace an expansion valve?
At this point, you will need to replace your A/C expansion valve to fix the problem. The replacement cost of an A/C expansion valve is anywhere from $200 to $450. The parts cost itself will be between $100 and $200 while the labor costs will be between $100 and $300.
What happens when your a / C expansion valve goes bad?
You will notice when the A/C expansion valve goes bad because your air conditioning system will ultimately stop functioning properly. It will either produce less cool air or it won’t produce any cool air at all. At this point, you will need to replace your A/C expansion valve to fix the problem.
Where is the a / C expansion valve located in a car?
The A/C expansion valve is found within the air conditioning system of a vehicle. The purpose of the valve is to manage how much refrigerant liquid can flow throughout this system.
Also, when changing the compressor, replacement of the expansion valve is usually a requirement for warranty coverage of the new compressor. Remove or discharge any remaining refrigerant from the AC system.
At this point, you will need to replace your A/C expansion valve to fix the problem. The replacement cost of an A/C expansion valve is anywhere from $200 to $450. The parts cost itself will be between $100 and $200 while the labor costs will be between $100 and $300.
You will notice when the A/C expansion valve goes bad because your air conditioning system will ultimately stop functioning properly. It will either produce less cool air or it won’t produce any cool air at all. At this point, you will need to replace your A/C expansion valve to fix the problem.
The A/C expansion valve is found within the air conditioning system of a vehicle. The purpose of the valve is to manage how much refrigerant liquid can flow throughout this system.
How can you tell if your AC has a bad expansion valve?
Warm Air – The most recognizable symptom of a bad AC expansion valve is when you turn on your air conditioner and warm air starts blowing out of the vents. This would obviously mean that not enough refrigerant is making its way to the core of the evaporator.
How do you replace an air conditioner expansion line?
Smear some refrigerant oil on the o rings and insert the new orifice tube into the line. Observe the direction, it’s easy to put it in backwards. The new orifice tube should have an arrow on it that should go in pointing toward the evaporator. Put new O rings on the line and re-connect the line.
Warm Air – The most recognizable symptom of a bad AC expansion valve is when you turn on your air conditioner and warm air starts blowing out of the vents. This would obviously mean that not enough refrigerant is making its way to the core of the evaporator.
Smear some refrigerant oil on the o rings and insert the new orifice tube into the line. Observe the direction, it’s easy to put it in backwards. The new orifice tube should have an arrow on it that should go in pointing toward the evaporator. Put new O rings on the line and re-connect the line.
How do you install an expansion valve on a truck?
Install the new expansion valve, the tapered end with an o ring should go in toward the evaporator coils. Check to see if the o ring in the refrigerant line coupling is still in good condition, then reattach the fittings that connect this pipe. Install the new accumulator into its mounting bracket or support.
Can a bad expansion valve cause an AC compressor to run?
AC compressor constantly running. A constantly running compressor is another symptom of a possible problem with the AC expansion valve. If the AC expansion valve fails or sticks open, it will cause the compressor to pump refrigerant through the vehicle’s AC system, even when it may be undesirable for it to do so.
What to do if your expansion valve is failing?
If you suspect that your expansion valve or orifice tube may be having an issue, have the vehicle’s air conditioning inspected by a professional technician, such as one from YourMechanic, to determine if the car will need an AC expansion valve replacement or another repair.
Can a bad or failing expansion valve cause unmetered refrigerant?
Frost on AC evaporator or coming from the vents. Another symptom of a potential problem with the vehicle’s AC expansion valve or orifice tube is frost coming from the vehicle’s vents. If the AC evaporator or orifice tube malfunctions, it can cause refrigerant to flow unmetered through the vehicle’s AC system.
AC compressor constantly running. A constantly running compressor is another symptom of a possible problem with the AC expansion valve. If the AC expansion valve fails or sticks open, it will cause the compressor to pump refrigerant through the vehicle’s AC system, even when it may be undesirable for it to do so.
If you suspect that your expansion valve or orifice tube may be having an issue, have the vehicle’s air conditioning inspected by a professional technician, such as one from YourMechanic, to determine if the car will need an AC expansion valve replacement or another repair.
Frost on AC evaporator or coming from the vents. Another symptom of a potential problem with the vehicle’s AC expansion valve or orifice tube is frost coming from the vehicle’s vents. If the AC evaporator or orifice tube malfunctions, it can cause refrigerant to flow unmetered through the vehicle’s AC system.