1. A defective blower fan, engine cooling fans and relays can affect AC system operation and cooling performance. Blocked or Broken Condenser: The condenser is where the magic happens in your air conditioner and if it has been blocked up with debris or is damaged, you wonât get cold or even cool air from the system. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. The Freon was OK when it was only cold on one side and even when it was blowing hot on both sides. Occasionally there could be problems with the compressor, but usually, the problem is a slow leak that has caused enough … If the clutch is not engaging, AC system refrigerant is either extremely low, there’s an electrical problem, or the clutch itself has failed. Turn the air conditioning on while the car is running. Don’t find yourself out on the road wondering, “Why is my car air conditioner not blowing cold air?” There are several reasons that could cause this problem: The coolant has lost its effectiveness. Modern AC systems use an expansion valve or orifice tube to control the amount of refrigerant entering the evaporator. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. Bad Clutch Cycling Switch: If the clutch cycling switch has failed, then the electromagnetic clutch on the air compressor wonât kick in, which means that the refrigerant cannot be pressurized and the system wonât work. The specifics will vary quite a deal from one vehicle to another, but most systems have some kind of blend door that changes how air flows or doesn’t flow, through the heater core. There are too many variables to guess. If you do need to “recharge,” as we call it, your refrigerant, there is an underlying problem that needs … All prices and links were current as of publication. I checked the refrigerant pressure with the engine on/ac on high and it falls into the “full” level. An air conditioner not blowing cold air is one of the most common HVAC problems we get here in Florida. Thank you for sharing what we need to do if the air conditioner isn't blowing cold air. When Freon starts to get low, the A/C can start intermittently blowing out cool air—particularly when it reaches a certain speed—and blowing hot air at other times. Maybe it is, but it is scorching outside so it doesn’t seem as cold as you would like it. I was able to add some Freon and the cooling system is most definitely getting colder. One of them is that your central AC may stop blowing cold air. Why Are My Houseplant Leaves Turning Yellow? The AC unit is exposed to stress from the … Absolutely! Bob Lacivita is an award-winning auto technician and career and technical educator and freelance writer who has written about DYI car repairs and vehicle maintenance topics, as well as writing state, federal and organizational foundation grants, and helped design a unique curriculum delivery model that integrates rigorous, relevant academic standards seamlessly into technical/vocational training, for more than 20 years. Having your car serviced regularly can help to ensure you don’t encounter the following issues. If the heater is broken because it's not blowing any air, it's likely due to a faulty blower motor or electrical connection. Thank you Matt, Jeep Patriot - AC is not working - Indianapolis, Indiana. Low refrigerant levels due to a leaky O-ring, seal or other component are the most common problems associated with a poorly performing AC system. You may hear a slight “click” or change in engine speed when the clutch engages. Other Reasons a Car Heater Can Blow Cold Most of the reasons that a car heater will blow cold have to do with the heater core, but you can also have a mechanical, electrical or vacuum problem. Every editorial product is independently selected, though we may be compensated or receive an affiliate commission if you buy something through our links. Freon is a type of refrigerant. A failing AC low pressure hose may cause a lack of cold air from the AC system. Whatever the cause, AutoAid’s ASE certified mechanics can find the right … Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. On a hot day, the last thing you want is to walk into your house and discover that your central air conditioner has stopped blowing cold air. Car AC not blowing cold air can be the result of a small minor problem or a big one that may have to be check with a mechanic. Toggle navigation. This process creates cold air that is directed inside your … © Contamination from corrosion or worn internal parts can also damage the compressor. Definitely. If all looks good on the power front and your AC is still not blowing cold air, it could be that the thermostat on your unit isn’t set at an appropriate temperature. Leaking or Low Refrigerant. No matter it’s your home ac or the car ac, there is a device named condenser in each of them. The The average car today contains a bewildering range of sensors that feed information to various computers to monitor everything from air intake to emissions and engine timing. The most common causes when car AC is not blowing cold air are an empty AC system, faulty air compressor, faulty AC pressure switch, and a clogged cabin filter.
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