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How to diagnose whether the car air conditioning filter is damaged? (2)

Views:10     Author:Site Editor     Publish Time: 2018-06-27      Origin:Site

Activated Carbon Cabin Air Filter for CF10285

Driving in a car without air conditioning can be uncomfortable or even dangerous in extremely hot conditions. Diagnosing the reason that your car air conditioning isn’t working will help you determine whether the problem is one that you can fix yourself or if you need to take it to a repair shop

 

2.Look at your cabin air filter. Especially if the air coming from your vents smells funny or if you think you have had a slow decrease in pressure for some time, check the air filter. You will be able to see if it has a buildup of dirt or debris on it.

•It is possible that your cabin air filter is so blocked that it is interfering with your air pressure, and replacing it will be a relatively easy an inexpensive fix to your problem.

•Your car manual may have instructions on replacing the cabin filter. If it doesn’t, try searching online for “replace cabin air filter” followed by the year, make, and model of your car (for example, you might search for “replace cabin air filter for CF10285”).

 

3.Check for a blower motor problem. The easiest way to do this is to try turning on your heat. If you have weak air flow when the heat is on as well, your blower motor may have gone out.

•A blower motor may have a resistor problem if your air only blows on the high setting but will not blow on a lower setting.

•Unfortunately, mice and other rodents sometimes build homes in car HVAC hoses and can get caught in the blower motor when the car is started. A loud noise (or bad smell) coming when the heat or air are running could be a sign of this problem.

 

Diagnosing air temperature problems

1.Find the front of your AC condenser. It is normally located in front of your radiator. If there are leaves or other dirt or buildup blocking it, remove them and clean the area

 

2.Look under the hood at the AC compressor clutch. If your air pressure is normal but the air is hot, you may have a compressor problem. Checking to see if the compressor clutch is engaging is a simple visual inspection. The compressor is usually located towards the front of your engine, just inside the grill of your car.

•Your car should be running with the AC on to check the compressor clutch.

•The compressor looks like a small motor with a large wheel on the end. The wheel (which is the compressor clutch) should be spinning. If it is not spinning, you have a problem with your compressor.

 

3.Check the tension on the belt of the compressor. It should be tight. If it is loose, you need a new compressor belt.

 

4.Find any coolant system leaks. One of the most common AC temperature problems is low refrigerant. The AC system is closed, so refrigerant should not be lost unless there is a leak.

•Look for oily residue on or around hoses that attach AC components together. Oily spots may indicate a refrigerant leak.

•You may consider using an electronic leak detector, which can detect much smaller quantities of refrigerant.

•There are also some testers that use dye, UV light, and protective glasses to find leaks.

•If you do find a leak, you will likely need to hire a professional to repair the leak. You will probably need new parts too, as many of the components cannot be repaired or patched.

 

5.Check for freezing. If your AC blows cold initially but then stops being cold after some use, it could be freezing. Excess air and moisture in the system may lead components to freeze.

•Freezing can also be caused by an oversaturated receiver/drier or accumulator.

•Turning the system off for a while and letting it thaw will temporarily solve the problem.

•If the problem is persistent, you may need your system to be flushed or evacuated with a vacuum pump.

 

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