As summer weather approaches and the sun is out more and more, you may turn on the air conditioner in your car for the first time this year. When you turn on the AC you expect nice cold air to blow through. Depending on when you last serviced your AC system you may be disappointed when only hot air blows, or no air blows at all.
These are two different problems, both which can be fixed relatively easily. Let’s first talk about no air blowing from the vents at all. The ventilation system in your car is very important to your comfort and safety. If you’ve ever had a foggy windshield and no ventilation system fan to defog or defrost your windshield it can become difficult to see very quickly, leading to a dangerous situation. The ventilation system in your car is usually run off of one fan and a series of vents, ducts and diverters. If the power to this one fan is lost, you will lose all air flow.
Most vehicles today have multispeed fans for convenience. These different speeds are usually controlled through a set of resistors which are controlled by the fan switch. These resistors are coupled in sequence depending on the fan speed chosen by the driver. The resistors get hot as they power the fan so, often times, they can burn out causing certain speeds of your fan to stop working, or all of them to stop working altogether. Since these resistors get hot, many car manufacturers will install them into the ventilation ducts of your car to keep them cool. Changing them can be as easy as removing two screws and one electrical connection and installing a new set of resistors which are available at your local parts store.
The second problem you may have this spring is having your ventilation system continue to blow warm air even when the air conditioner is turned on. This problem has to do with your air conditioning system itself. Your air conditioning system uses a refrigerant, a compressor, an expansion valve and two heat exchangers to cool the air inside the cabin of your vehicle. With little or no use during a long winter, the air conditioning system may have problems when re-engaged. Occasionally there could be problems with the compressor, but usually the problem is a slow leak that has caused enough refrigerant to leak out causing your air conditioner to malfunction.
To fix your air conditioner, you must first seal the leak and then replace the lost refrigerant. BlueDevil Products has a product that can accomplish both solutions in one quick and easy installation. Red Angel A/C Stop Leak Aerosol comes in an easy-to-use container with an attached coupler for the R-134a air conditioning system in your vehicle. Red Angel A/C Stop Leak has 2 ounces of a powerful leak stopping agent that will not harm or clog any of the components in your system and will remain inert in the system until it reaches the leak. The temperature differential at the leak will activate the leak sealer in Red Angel, sealing the leak permanently. Red Angel also has 2.5 ounces of refrigerant to replace the refrigerant that leaked out over the winter, completely fixing your air conditioning system in one can.
Red Angel is available online or you can order at any of our partnering auto parts stores like:
- O’Reilly Auto Parts
- Pep Boys
- CarQuest Auto Parts
- Advance Auto Parts
- Bennett Auto Supply
- Prime Automotive Warehouse