Written The first step would be to determine if your blower motor still operates. This is easily known by putting your hand up to any supply vent (vents that push out air into your home).Occasionally, you could have an air conditioner that has too much Freon, which is causing your system to freeze up, but more than likely you do not have enough Freon circulating through your system, which is causing your air conditioner not to produce cold conditioned air to your home.It is a common misconception that every so often, one must add a little more coolant to your system, not unlike topping of the oil in your car. But this notion is false. Leaks are caused by holes, sometimes as small as a pinhole located anywhere where the refrigerant circulates. The size of the hole determines how long it takes for the Freon (which is actually a gas) to slowly leak out of your system.Large holes will ensure the refrigerant leaks out much faster. Sometimes charging up a system, and spending hundreds of dollars to do so, is the wrong approach, as the Freon will only leak out days, sometimes weeks after it has been recharged.

Written As many writers have mentioned, there are different reasons why aircon is not working properly.I would advise that one takes a step by step approach before jumping into a conclusion.I am assuming that the aircon unit is blowing distributed air out from the indoor unit blower, with the right volume of air because the question mentioned that it is not cold air. ac unit room sizeIf the air blown out was not constant and distributed, then a chemical cleaning would be recommended to clean the unit throughly. used central ac units for saleThe choking of dirt in between the coils was the cause. ac unit not runningSo now coming to the problem of non cold air. One of the most probable reason is that there is insufficient freon in the outdoor unit compressor that leads to the copper pipes in aircon unit not cool and hence the air.

You will need tools such as gas meters and spanners to top up the gas and should be carry out by a specialist. The reason for insufficient freon is that there was some leakage somewhere along the copper pipe. It is a tedious task to find out the leakage. However, if your aircon is newly installed and not cold from the very beginning, then you should invite a specialist and do a proper troubleshooting. The possible problems are way too many, such as circuit board and wire connection.Written Please check your air con outdoor unit . if the gas is low level in out door unit , that will be effect to not get fresh cool air. somethings indoor unit with no cleaning service for long time .Some time need to check your air con remote as may be your children will press to fan , that will be fan only operate when you open the air con.When summer’s here, or really any time you want cool, dry air while driving, your car’s air conditioner (AC) is critical to your comfort and safety. Unfortunately, frozen AC lines can put a major kink in your road trip.

Why are your car AC lines freezing up, and what you can do about it? Usually, AC is one of those forgotten systems that you never really think about until it stops working. Sometimes there can be worn or unmodified AC systems that function for years without a problem. On the other hand, if your car has been in an accident, has ever had any AC components removed or had any service done, the situation is ripe for frozen AC lines. What Causes Car AC Lines to Freeze Up? Really, the only thing that should be in your car’s AC system is refrigerant and oil. To keep these things inside and others — such as air, moisture and dirt — out, the pipes, hoses and seals are specially designed to maintain a tight seal. The problem of car AC lines freezing up is caused by moisture that has been introduced into the system. At the expansion valve or fixed orifice tube, depending on the system, liquid refrigerant instantly expands into a gas, forcing the temperature to drop. Moisture in the system can freeze at that point, blocking refrigerant flow through the valve, and you’ll notice you have warm air coming out of the vents.

As the valve warms up again, the ice melts and refrigerant flows, so you’ll get cool air again, but the cycle will continue. Generally, the only way that moisture can get into the AC is if the system is opened up or if you have a leak. If there is a leak, air and moisture can be pulled in by vacuum on the low side of the system. Also, any time that the AC system is opened, moisture can get in. For example, if you use an R-134a top-off bottle to fill it up, a little moisture can get in when you open the valve cap and install the can. Similarly, if an accident breaks the system, such as the condenser or one of the lines, the open system can freely absorb water from the air. Normally, the receiver-dryer absorbs some of this moisture, but it only has so much capacity before it is saturated, leaving the rest to float about in the refrigerant stream. What Can You Do About Moisture in the System? If you notice your car AC lines freezing up, you have to get rid of the moisture that’s causing it, starting with a full leak check.

Recover the refrigerant from the system and make any necessary repairs to parts such as O-rings, hoses, lines or evaporators. If the system has been opened for more than a few hours from an accident, damage or corrosion, the receiver-dryer absolutely must be replaced. It can become saturated when left exposed to the air. Alternatively, if the system has only been open a few minutes, during recovery and evacuation for engine repair, for example, you probably won’t have to replace it. Evacuate the AC system for about 30 minutes to boil off any moisture in the lines. Finally, recharge the system with the proper quantities of refrigerant, oil and a little ultraviolet dye for future leak detection. For more information on car AC systems, chat with a knowledgeable expert at your local NAPA AUTO PARTS store. Photo courtesy of Pic Basement. So You Left Your Convertible Top Down In The Rain: Don't Panic! How to Apply Touch Up Paint Like a ProAuto Service: Air Conditioning, A/C

The air conditioning system in a car is serviced when freon gas gets low or when the system does not work. How often should service be performed for the car: A recharge of the AC freon gas will not be required until the car has quite a few years or miles. Usually this becomes apparent when the air blows hot from the vents. A fully charged system should reduce ambient temperature downwards of forty degrees. As the air conditioning system ages freon will seep out through small leaks where parts are joined together and sealed with rubber o-rings (a circular gasket). These o-rings begin to dry out and cannot give an air tight seal. The system will still reduce temperature even with half the freon required, just not as well. Therefore as the car ages, a recharge of the system every three years is normal. What are the symptoms of faulty Air Conditioning for the car: If this recharge lasts a short period of time, there is a more significant leak which needs to be diagnosed and repaired.

Usually, one of the lines, the condenser or the evaporator will develop a hole where the freon will leak much more rapidly. The air conditioning system will also not work if a component has failed mechanically. The compressor is the most common failure item. The pulley on the compressor is in constant motion, even when the air conditioning system is not in use, and will wear out over time. The compressor also contains the most moving parts within the system, so breakdown at some point is expected. In newer cars with advanced climate control, sensor and computer problems are quite common. If a sensor stops working or if it measures incorrectly (either pressure or temperature) the system will stop working. How air conditioning works in a car: Air conditioning provides a large amount of comfort when driving. Ambient temperatures and heat generated by the engine can create a very uncomfortable cabin for passengers. Air conditioning does not provide cold air, instead when the system is working well will take the heat out of the air inside the cabin.

The freon under high pressure will pass through a valve either called a thermal expansion valve or an orifice tube, which allows the freon to rapidly expand. This drop in pressure creates a drop in temperature. The freon then passes through tubes in a radiator looking device inside the cabin called an evaporator core. The air inside the passenger cabin is pushed through this evaporator core before it exits the vents and has the heat taken out as the freon seeks to regain surrounding temperature. This process also takes all the humidity out of the air in the cabin (think of the evaporator core as a cold can of soda with condensation). This process of drying air also makes the defrosting of the windows in the winter time much easier. The air conditioner will be active when defrost is commanded even with the heat running. This will take moisture out of the air and quicken the defrost of windows. What can happen if this service neglected for the car: Neglect of the air conditioning system can lead to some problems.

For the most part, a non-functioning air conditioner means no relief from high temperatures and humidity, and accordingly this lack is more problematic in areas of the country where sustained high temperatures are common. However, in colder climates, lack of air conditioning will cause longer times to defrost or defog windows before driving safely. In some cases, mechanical failure may lead to other problems in the car. A seized compressor can break the serpentine belt and leave the car without a power steering pump, an alternator and a water pump. Finally, freon is an ozone depleting agent. Any leaks in the system are detrimental to the environment. What does the typical air conditioning service cost? Most automotive service professionals can perform this service. Keep in mind, pricing will vary by location and your vehicle make and model. Save time and money by using Openbay to compare pricing and book an appointment with a service center in your area. Service article written by an ASE Master Technician