International ProStar Ac Problems You Need To Know

Encountering some International ProStar AC problems just when the weather is hot and humid is the last thing you’d want to go through.

After all, this adds to the stress of driving your vehicle. As you continue to drive your truck, the interior feels hotter – even if the AC continues to blow. Unfortunately, the air is far from being cold, so you just want to get it fixed once and for all.

But the question is – how do you go about it?

Keep reading to understand more about these AC problems with International ProStar and what you can do.

international prostar ac problems

Common International ProStar AC Problems

When your vehicle’s AC has been showing signs of malfunction, that can really put a damper on your trip. The humidity in the air combined with the long ride can really stress you out. Here are some of the problems linked with the International ProStar AC units.

1. Damaged High Pressure Switch

What the high pressure switch does is to identify the amount of refrigerant flowing through your vehicle’s system. So, if it is low, then this is bound to be a problem.

Perhaps, your AC just stopped working immediately, even after you have been operating it well during the first few miles of the trip.

With that being said, you can blame it on the malfunctioning of your high pressure switch. That, or it is totally broken and no longer fit to use. So, your entire AC system fails to cool your vehicle properly. Sometimes, not even any cool at all.

2. Freon Issues

If your AC is not cool enough, then the most common culprit is the freon. Your vehicle needs this refrigerant to stay cool.

Some people simply buy some R143 cans at the store, including a pressure gauge. But if you want accuracy in checking the right balance, then this is something that a professional can do for you.

But the last thing you want – no matter what – is to further turn the knob to a lower setting. When you go far too low, the system may freeze over followed by a complete locking up. With the help of an expert, they can achieve the perfect balance for the pressure to make sure your system cools the cab with the optimal air temperature required.

3. Mold and debris

Next up, the engine creates a specific environment that is conducive for mold and mildew to grow. Thus, you can smell something funky out of the vents – and this is what we call mold. A simple and thorough cleanup is what you need to do to make sure the collection is taken care of.

4. Compressor issues

And lastly, an issue with the compressor is to blame. When the expansion valve has failed, or the orifice tube is no longer working properly, or perhaps the clutch is broken – all of these can cause a malfunction to the compressor.

You can use a voltmeter to check whether there is ample voltage reaching your compressor. But at the same time, you need to conduct further checks to make sure there are no further issues to your seals, hoses, or even to the condenser unit.

When you notice that the other components are in perfect working order, yet the cab is still not getting any cool at all, then a thorough inspection performed by a professional is needed.

Read More: How To Bypass Egr Valve On 60 Series Detroit

Additional Facts About International ProStar AC Problems

If you intend to tackle issues with the International ProStar AC, you may find it rather frustrating since the systems are programmed in such a way that can be quite complex to deal with.

It runs right through the cabin controller on the truck, which is then located underneath the steering wheel. If the system fails, it will not reset and the AC will not come back on until you pull over to stop on the side of the road, then you will need to shut the truck off for half an hour or so, then crank the vehicle back up and drive down the road.

If the system falls out and if your AC is running, it’s not doing too well because of possible issues such as the compressor being weak or the sensors are old and need replacement.

But if there are other reasons, then you will have to get off the vehicle and reset the cab controller. Simply install an on and off switch, which is then wired into your cab controller. It should work well and makes it easy for you to do a reset on the fly.

Overall, a simple switch installation to reset the cab controller without going through all that trouble may help you quickly address this issue with the International ProStar AC while you are on the road. But if all else fails, never hesitate to consult a professional to troubleshoot and fix the problem for you the best – and most efficient – way possible.

Leave a Comment

Read more