Spoiler alert: That’s not supposed to happen Even the quietest modern air conditioners make some noise as they cool your home, but there are some sounds your AC just shouldn’t be making. Clicking, banging, clanking and hissing sounds are signs of trouble, and if you hear them, you’ll need to take action to identify and resolve the problem. Here are some common indicators of AC maintenance issues. First, listen for vibration noises. A humming sound generally isn’t an indicator of a serious issue, but it probably means that something inside your air conditioner is slightly out of order. Loose parts and too-tight refrigerant piping can cause vibration, and if left unchecked, lead to a more serious maintenance issue. Buzzing or humming could also be a sign of an electrical problem with your air conditioner. Shut off the power and check around the wires for any signs of corrosion, rust or other damage. If the compressor hums and refuses to start, there may be an issue with the motor.

Either way, your air conditioner needs professional service. Like vibration, rattling is usually a sign of a fairly simple maintenance issue. It might just mean that the screws or bolts that hold the casing in place have come loose. After shutting down your air conditioner, try tightening those screws and see if that fixes the problem. If not, it’s important to have your system inspected by a professional. If your air conditioner hisses during normal operation, that could be a sign of a leak in the duct system. Left unchecked, that leak could cost you quite a lot in lost cooling power. More seriously, hissing could be a sign of a refrigerant leak, which needs to be professionally repaired immediately. An AC service professional will be able to check the refrigerant gauge to see whether it’s still in the recommended range. Clicking, clanking and banging sounds are all indicators of serious issues. A loose connecting rod or crankshaft, for instance, might be making the noise.

We recommend immediately shutting down the air conditioner and taking a look before anything breaks. Finally, if you hear high-pitched whistling or screaming, shut the air conditioner off and call a professional right away. The most likely cause is a refrigerant leak, which not only damages your air conditioner but can also threaten your family’s health. Screaming might also indicate high internal pressure, which again is very dangerous. To take care of any of these air conditioning issues, you’ll need to call a trained, certified HVAC professional. At ABC Home & Commercial Services, we’re proud to be the Austin area’s AC repair and maintenance specialists. Give us a call and we’ll be right there to diagnose the issue and fix your air conditioner.Written Written Ah yes, this is a very annoying problem that I myself have had trouble with. I would recommend you stop running and unplug the unit until you fix this problem. Usually your ac unit is making this noise due to water build up, but there could be other problems with the unit as well.

The compressor or condenser inside the ac unit could be on the fritz, there could be two wires touching making a malfunction, there could even be something inside your unit that is obstructing the fan. install air conditioner outdoor unitWhatever the case may be, I would get in contact with an AC repair professional. gas heater ac unitHe/she may be able to give you the exact answer you need, and this also will prevent you from any unnecessary harm. portable ac versus window unitIf you find out the problem is easily fixable only then would I recommend you save some time and money and do the repair yourself. I had to replace a fan blade on my unit, and I went to Air Conditioning Parts for an original manufactured replacement. Good luck and hopefully I have helped you out today!

Written Written I agree, you must stop using the unit and keep it unplugged till a time when a HVAC professional has checked it out and given it a bill of clean health. Otherwise, your AC may be leading to heating up or too many fluctuations which may cause either a short circuit or the fuse to blow up. This could even lead to an electrical fire.Quite simply, your AC requires to be serviced which means that the filter needs to be cleaned and the AC needs to be checked inside out. In high moisture areas, particularly after a rainstorm like the one you’re talking about that happened, what happens is that there is water or moisture build up inside the unit which is causing this cracking and popping.In extreme cases, this could be a malfunction due to some form of fault in the wiring. So, whichever way it may be, you need to get in touch with an HVAC Contractors, preferably through Bakers Brothers plumbing. 199 posts, read 514,698 times 3,190 posts, read 3,266,709 times 946 posts, read 1,746,637 times

6,364 posts, read 10,547,581 times Originally Posted by teach1234 Proper name is blend door actuator. The OP didn't state what vehicle he has but it's a problem mostly seen on Fords. 14,718 posts, read 15,190,421 times Something is caught in the Blower Motor Assembly. By your description it requires replacement. It has a fan in it. Heres a link for the parts. Auto Parts and Accessories Catalog - New & Used Car Parts at Discount Prices 2 posts, read 123,946 times 2,698 posts, read 6,974,380 times 1 posts, read 45,559 timesClick below to read other visitor ac noise problem... Thumping Sound When Indoor Fan Spins Down Recently my indoor blower has gotten extremely loud. There is lots of vibration on the handler unit when running and when it cuts off, as the fan spins … Air Conditioner Buzzing Noise  March 20, 2011 Inside my upstairs apartment, I can hear the air conditioner in the downstairs apartment, and I cannot sleep.

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