Everyone is tempted to think that the overcharged AC system will give cooler air. Unfortunately, this is not always the case.
When the system gets overcharged, the AC starts functioning abnormally. And if not fixed in time, it causes more problems.
In this article, we will share with you steps that work in bleeding off an overcharged AC. We will also recommend other measures that are necessary to prevent overcharging your AC system.
Let’s get started.
Table of Contents
How To Bleed Off An Overcharged AC
To bleed off an overcharged AC system, you will need to locate the low pressure service port and attach a refrigerant dispensing hose to it. Slowly open the valve on the hose and allow the excess refrigerant to escape until the pressure in the system returns to the normal range.
What Overcharged AC Mean
Well, overcharged AC simply means that you have put excess Freon in the lines of the AC system. Most people are tempted to put much Freon to the AC, thinking that it would make the AC extra cold.
Unfortunately, overcharging your AC can make it warm or function abnormally.
In short, when an AC is overcharged, it starts blowing cold air.
Overcharging will affect the performance of your compressor if it’s not well taken care of. The oil will start pooling in the compressor and damage it. As a common technical issue, you may know how to remove refrigerant from Car AC. It helps you in the process to bleeding off an overcharged AC.
Why Do You Need To Bleed Overcharged AC
Now you know that excess Freon doesn’t make the car colder. The opposite happens – it starts venting warm air to the car. This is because the AC system can’t work at an optimum level with excess refrigerant.
The excess refrigerant also puts more wear on the compressor, which makes it kick off with warm air. Also, the overcharged AC system will start pooling oil inside the system.
You shouldn’t allow the compressor to reach this level. It will completely be burnt and require replacement.
What Else Causes is AC Overcharging?
AC overcharging is commonly caused by excess refrigerant into the AC system. Something else that would cause AC overcharge is excess oil. However, excess refrigerant is the main cause of AC overcharging.
And to find out if your AC is overcharged, you mainly need to measure the pressure of the entire AC system.
Overcharging the system and leaks are common with AC. However, other things would cause the AC overcharging. They are;
- Slipping belt
- Loose wiring
- Old or low oil in the system
- Wrong compressor lubricant
To diagnose the overcharging of the AC, look at the high-pressure side readings.
How To Avoid Overcharging Your AC
Check Any Leaks
It’s simple. To avoid overcharging your AC, you need to perform a simple task. You need to start by checking any leaks on the AC system.
This is easily done using a leak check kit which is available on Amazon.
LotFancy Refrigerant Freon Leak Detector is the best kit you will find in the market. It’s available on Amazon. And it comes with an excellent sensor that maximizes the sensitivity of detecting the leaks.
Click here to check the latest price and buy it from Amazon today.
Don’t leave any air opening in the AC system. This will allow air to get into the AC system. Use the detector to check the leaks along with the compressor, hoses, and lines.
If you find any leaks on the AC system, you need to replace it with other new parts.
You will also need to physically check the system and see if you can see any oil leaking. If you see any leak, the best thing to do would be replacing parts that are leaking.
Use The Right Refrigerant
Most vehicles use R134a refrigerant in their system. If you use the wrong refrigerant on the AC system, it will behave abnormally. There are chances of overcharging or undercharging the AC.
So, to be on the safe side, understand the refrigerant used by your AC system, and buy it.
For systems that use R134a, the refrigerant is available on Amazon. Click here to check the latest price and buy it now.
Regularly Check The Pressure On Your AC To Avoid Overcharging
It’s always advisable to check the pressure on your AC system before it causes a huge problem. You can do this by using a pressure gauge.
Mofeez Pro AC Diagnostic Manifold Freon Gauge Set is the best kit you will find in the market. It’s available on Amazon. Click here to check the latest price and buy it now.
- Check if the PSI is over 150 when the engine is off. If you find it has exceeded 150 psi, then you have overcharged the system.
- When the engine is running, the pressure shouldn’t exceed 250 psi. If that happens, then you have overcharged the AC system.
- If you have to release pressure from your AC system, we recommend that you take your car to a skilled mechanic to do it for you. This will help you get the job done properly by a professional. You will also be on the safe side of the law.
Frequently Asked Questions
How do you release pressure from overcharged AC?
To release pressure from an overcharged AC, connect a refrigerant recovery machine or manifold gauge set to the low-pressure port and carefully vent the refrigerant.
How do you release an overcharged car AC?
Release an overcharged car AC by connecting a refrigerant recovery machine or manifold gauge set to the low-pressure port and carefully venting the refrigerant.
How do you fix an overcharged AC compressor?
Fix an overcharged AC compressor by releasing the excess refrigerant using a refrigerant recovery machine or manifold gauge set.
How do you release Freon from an air conditioner?
To release Freon from an air conditioner, connect a refrigerant recovery machine to the low-pressure port and follow proper procedures to safely recover the refrigerant.
Parting Shot
It isn’t much you can do when you overcharge your AC system. The best thing you can do is take the car to a mechanic.
However, you can take all the other simple measures we have recommended in this article to ensure that you don’t overcharge your AC system.
When an overcharged AC system is not fixed, it might completely damage your compressor and require more money to replace it.
