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Published on January 3rd, 2024
Innova R&D Team
Here to assist you in any form & shape
Innova diagnostic scanners assist you in understanding your vehicle, finding problems, and providing guidance for repairs. You can access the same advanced technology used by professionals, without the high costs or subscription fees.Learn more about Innova Scanners
Summer has arrived, but the A/C has departed from your vehicle. Commuting to work and road trips will not be as pleasant until the issue with the A/C has been resolved. There could be several reasons why your vehicle's A/C isn't functioning properly. An Innova scan tool can help you diagnose what is going on with your A/C. From there, you can decide if you can make the repairs yourself or if you need to see a mechanic. Our scan tools have a free, but optional mobile app that provides what replacement parts are needed for the fix, a link on where to purchase them from, and scheduling repairs with RepairPal.
Discover your ideal OBD2 scanner by answering a few questions.
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A receiver is a device to store the refrigerant liquidized by the condenser temporarily, and it supplies the required amount of refrigerant to the evaporator.
A Dryer has a desiccant and strainer in itself, and eliminates foreign matter or moisture in the refrigeration cycle.
If moisture is in the refrigeration cycle, parts in it will corrode or freeze inside the expansion valve, which could cause the clogging.
A sight-glass is an inspection hole used to observe the refrigerant flowing inside the refrigeration cycle and to check the level of the refrigerant.
There are 2 types: one is installed at the outlet of the receiver and the other at the piping between the receiver and the expansion valve.
Generally, when many bubbles are seen from the sight-glass, it means the amount of refrigerant is insufficient, and when no bubbles are seen, the amount is appropriate.
In the case of no refrigerant or excessive refrigerant, no bubbles are seen, so it is necessary to pay attention. In addition, depending on the conditions such as engine speed or refrigerant pressure, even if the level is appropriate, bubbles can be seen.
For sub-cool type condenser, since more refrigerant is filled at the point at which the bubbles disappear, the refrigerant may be insufficient even if it seems normal in the inspection from the sight-glass.
If you feel that your vehicle’s A/C is not cooling properly, then it's time to take some action. The first thing recommended is to check for the pressure of the refrigerant, and see if the pressure readings of both high side and low side are within the optimum range in the A/C Pressure Chart.
Some of the most severe problems can be costly, but this can be money well spent when the temperatures are scorching.
Here’s a look at some national average estimates to fix the most common air conditioning issues, courtesy of RepairPal.com. Prices will vary according to the cost of parts for your specific vehicle, local wage rates, and other factors. Estimates do not include taxes and related service requirements.
Sometimes, it helps to just push ahead and take a leap of faith! Learn more about our OBD2 scanners and how it can help diagnose the hidden issues with your vehicle.Get Started
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