Air-conditioning noises can indicate proper operation as well as an indication there's a problem developing or present. asked to listen to a certain noise the air conditioning system is making and provide feedback about what it means. In this article we'll discuss both sides of the subject. This will include normal noises you should hear from the system when it's working properly, but first we'll tackle the bad sounds that should be investigated further. Most people are interested in the noises their air conditioning system shouldn't be making, so we will address those first. are perhaps the most common complaint from drivers. In this situation the serpentine belt is often the culprit. These belt noises can sound like a major problem and are sometimes mistaken for bearing failure. It's tempting, but not recommended to use belt dressing for diagnosis, because it contains oils that can damage the rubber. Instead use a high output spray bottle of water and carefully

spray the belt to see if the noise disappears. If it stops squealing when wet this is an indication it needs further inspection. A worn or stretched out serpentine belt along with a malfunctioning tensioner are some of the problems that can develop with an air-conditioning drive belt. However, poor quality parts can make a racket all on their own. I prefer to use Continental Elite or Goodyear Gatorback engine belts with quite technology when replacing parts. Bad compressor pulley bearings can also make noise. In this situation it increases when the compressor clutch is engaged. Determining the difference between belt and compressor problems can be tricky. If the belt is old you might consider replacing it for maintenance reasons and see if it solves the noise problem. If you need more information on this subject I have posted some diagnostic information and several popular drive belt diagrams on my other site. When in doubt seek professional diagnosis.

When we talk about AC compressor noises we're discussing sounds it can make when the unit is engaged. If the Freon has leaked out, it won't turn on, so nothing is moving inside. In this scenario people might try adding refrigerant on their own. Then when the unit kicks on they could hear a noise. A buzzing noise from the compressor when the air-conditioning clutch is engaged is a sign of an overcharged system. In this situation the buzzing sound is caused by liquid refrigerant entering the compressor intake port. Of course, this problem is most common after an air conditioning service when too much Freon has been added. When this is the case it needs to be corrected as soon as possible, because it can cause internal damage. Replacing a car air-conditioning compressor is expensive and harder than it looks. Also note the AC will not cool properly when it's overcharged. Next up is knocking or clicking sounds while the air conditioner is running. caused by loose mounting bolts that secure individual air-conditioning

This isn't as common as the above conditions, but I have found this issue more then once. You can literally stand back and see the loose component shake and move when the engine is running. Nevertheless, this may actually be the best case scenario for car owners when it comes toTightening a few bolts and adding some thread locking compound will solve the problem for good. Many times a friend or customer will ask me to come listen to a strange hissing sound when the automobile is turned off. ac motor speed control using triac with display unitNaturally, this is after running the system for a while on a hot summer day. home ac repair tallahasseeAlthough this hissing noise, sounds like a bad noise, it's actually a good air conditioning noise.auto ac repair in visalia

The hissing sound is caused by equalizing pressure. AC system is running there is a high side and a low side that's divided by either an expansion valve or an orifice tube. sides of the system are necessary for proper operation. When the vehicle is turned off or the air-conditioning compressor clutch is disengaged the system will equalize the pressure. sound is the Freon from the high pressure side slowly feeding into the low pressure side and this is completely normal. Another good air conditioning noise is the roar of theWhen the AC is running the condenser fan will pull additional air through the radiator and the condenser, removing heat from the freon gas and returning it to a liquid state. can cause additional noise that's not present when the systemOften this additional noise is sensed as a problem by the driver as it can be quite loud. You can check with your auto mechanic to make sure that this is a normal condition.

Favorite or show friends this air conditioning noises page. I recommend that you take a few minutes to learn more about your air conditioning system from my free articles available on the you fixThis next link will take you to the beginning page for this section from this page about air-conditioning noises. The homepage is a good place to find out what's covered on the website. Learn about how to get your DIY auto repair questions answered.The heater is not working nor the cigar lighter, are these connected to the same fuse? Could it be the fan switch? I dont think they are the same fuse but it definitely seems like a fuse problem. Take a look at the fuse box and see what they look like. I also think that in your manual it tells you what fuses belong to which component. 8 out of 8 people think this is I have a 2001 Jeep Cherokee. If the fan doesn't work on any position, it is the fuse. The fuse is under the hood and is 40 amps. Sometimes all you have to do is take it out and put it back in.

It may not be necessarily blown. If the blower only works on the high position, it is the blower motor resister. It is behind the glove box. You have to remove the glove box. It is a white rectangular resister about 3 inches long. 19 out of 19 people think this is We checked the fuse to take it out but a new one put one in and the blower still not working any 4 out of 4 people think this is I have the same problem but when I turn on that car and went to turn on the heat and there is no noise no nothing just the lights are on I guess that's oneI had the heat on when I was driving and I parked at my local store to go in and I had the heat on and I didn't bother to turn it off when I turned off the car and when I got back in and turned on the car there was nothing the heat did not work. But when i bought that car used it was in the summer and i did not bother to check if anything worked, and when it started to get cold outside I started to use the heat and it only blows out hot air on the

passenger side and the driver side it blows out cold. I also do not have the A/C compressor nor the hose could that have something to do with it blowing or could it just me maybe the flaps/doors are not opening right, also the defroster blows out cold air. I have not checked the fuses yet. but i will when I get the 5 out of 5 people think this is I have a similar problem on my 2011 Jeep Grand Cherokee. heat worked fine this morning on the way to work. Now I have noThe lights come on, but no air at all, heat or AC. fuse and it is fine. What else could it be? 13 out of 13 people think this is My heater blower stopped working as well, and my solution was under the glovebox. There is a raised housing unit sticking out under the glovebox on theTake the butt end of a blunt object and give it a few love taps while you have the blower on. Thre is a part that needs replacing, can't think of the name, but this has been a temporary fix for me for the