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How A Car Ac Unit Works
how a car ac unit works

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5 star35%4 star5%3 star15%2 star15%1 star30%See all 20 customer reviewsTop Customer ReviewsIt works, you MUST use large blocks of ice..
ac unit top coverI explain everything I can think of in this review.
price of ac unit for homePlease don't waste your almost $400My plan failedIt worked for 3 hours.
how to level an ac unitPortable cooler air conditioner for $40.00.So glad I gave it a tryIt’s hot out there! Soon, you’ll be slipping behind the wheel of your car, starting the ignition and powering on the air conditioner. But what do you do if the car air conditioner is blowing hot air or, worse yet, not functioning at all? Here are four tips to help you forego the perspiration and get some inspiration to fix your air conditioning: 1. Examine the Cabin Air Filter

Your car’s cabin has an air filter, which expedites the flow of air from the air conditioning system under the hood and into your vehicle’s interior. That filter is located either inside your glove box, under the dashboard or under the hood. Wherever it may be, locate it and pull it out. You will know that it is clogged if it is blackened and filled with debris. Replacing it may be all it takes to resolve your car air conditioner problem. 2. Raise the Hood and Check the Condenser Under the hood, immediately in front of the radiator, sits another part prone to clogging: the condenser. Fortunately, you don’t have to remove the condenser to clean it and free up air flow. Instead, simply put a garden hose on a medium to high setting and direct the water flow through the grille’s louvers. The lower portion of the grille is an especially important target, as that is where contaminants like road salt will collect. 3. Check the Cooling Fan What do you do if there is no air coming out of the vents at all?

Today’s cars are usually equipped with under-the-hood electric cooling fans so when the air conditioner is on, the cooling fan is working. If it isn’t working, then either the relay, temperature sensor, control module or fan motor has malfunctioned. In most cases, the relay is to blame for shutting down your air conditioner. Visible signs of corrosion or burnt wiring are a sure indicator that the relay should be replaced. Another critical component in the car air conditioner system is the compressor. The compressor is tasked with handling low-temperature refrigerant gas and compressing it into a high-pressure, high-temperature gas. When the compressor is working, it sends refrigerant to the condenser. The compressor should be turning if the serpentine belt is turning; if the belt is not turning, it may need to be replaced. If it is turning, then the clutch wire or compressor piston may have broken. Other possible problems could be a bad thermostat, bad clutch oil or low refrigerant levels, which can cause the compressor to shut down.

Unless you have the tools and the expertise required to address these issues, your compressor problems should likely be left to the professionals. Although some air conditioner problems can be resolved using common hand tools, more complex problems may require air conditioning testing, scanning and specialty tools, something not every weekend mechanic owns. When in doubt, take your car to a mechanic — a wrong move could do further damage to the air conditioning system. For more information on car air conditioner repairs, chat with a knowledgeable expert at your local NAPA AUTO PARTS store.A vehicle's A/C system consists of a number of components, including the A/C compressor. The A/C does not cool without a working compressor, and the compressor does not function properly without a working A/C compressor clutch. In order to properly diagnose and fix problems associated with an A/C compressor clutch, consumers should develop a basic understanding of how the system works. Otherwise, they could spend time and money purchasing the wrong parts when they could have conducted some simple A/C compressor clutch diagnostics.

The A/C compressor is essentially the working core of a vehicle's A/C system. When consumers turn on their A/C units, the A/C compressor starts to compress refrigerant in the system. This compression creates high pressure and raises the temperature of the refrigerant before it enters the A/C condenser. The A/C compressor clutch is in charge of alerting the compressor to start this compression. In other words, the compressor clutch is responsible for communicating to the A/C compressor when to start and stop operating. The A/C compressor clutch actually has multiple components. Once the A/C system activates, the compressor clutch pulley starts to rotate the compressor clutch hub, which is a round metal piece located at the front of the clutch. The compressor's belt rides along the pulley. The compressor clutch hub attaches to the compressor shaft, which starts to rotate, creating both suction and discharge. The compressor's belt then forces the compressor clutch pulley to rotate, and that causes the compressor clutch coil to pull the hub against the pulley.

The compressor clutch coil is tightly wound copper wire found below the pulley that acts as an electromagnet. These combined actions allow the A/C compressor clutch to engage the compressor and turn on the A/C. A lot of common A/C problems originate with the A/C compressor and the compressor clutch. However, before jumping to any conclusions, consumers should attempt to rule out any issues that could merely require simple fixes. If the A/C blows only moderately cool air when the temperature setting is at the coldest, owners can check a couple of things. First, they need to ensure the cooling fans on the A/C radiator and A/C condenser work properly. They also need to look for debris that might be blocking the A/C condenser and keeping cold air from passing over it. Finally, consumers should check the cabin air filter to ensure it is free of debris and contaminants. Although a completely non-working A/C system could certainly indicate a serious problem, sometimes another culprit exists.

Consumers should examine A/C systems to determine that no breakers or fuses have tripped or blown because those issues prevent power from running through the A/C system. A/C compressor clutch problems regularly occur when routine maintenance does not take place on the vehicle's A/C system. As a result, the A/C compressor clutch is often to blame for common A/C problems. Suction pressure is too high Discharge pressure is too low Compressor delivers inconsistent pressure to the refrigerant Addition of a shim to close air gaps between the hub and pulley Replace A/C compressor clutch If A/C compressor has voltage, probably defective compressor clutch Replace A/C compressor clutch A/C compressor clutch coil receiving inadequate voltage Overheating of internal winding Slippage of hub against the pulley A/C compressor clutch may have a defective pulley bearing With regards to most of these issues, the best solution is often to replace the A/C compressor clutch.