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What should we do with the sounds from the unit
Air conditioner is very common in our life right now, and it always operates frequently in summer to cool the surrounding air. However, it will be upset if there are some noises coming from the operating air conditioner. The large sound of noises seem to remind us something wrong with the air conditioner. Here we would like to talk about several kinds of sounds from the air conditioner. Following is the detail.

If there is a high-pitched screaming noise coming from the air conditioner after you turn on the air conditioner, it may be a sign to remind you that there is a high pressure buildup within the unit. If you find this sign, turn off the air conditioner at once and ask a professional to fix it immediately.

If you hear a high-pitched metal-on-metal sound from the air conditioner, then maybe there is something wrong with the compressors or fan motors, for this reason, just repair the compressors or fan motors, and the noisy will disappear.
If you hear a buzzing noise from the air conditioner, and the noise do not stop after you turn off the air conditioner, then maybe there is an electrical problem is the air conditioner. Maybe some of the parts of the unit have been loosen, or some of the parts may have been broken down and in need of replacement.

All in all, no matter what kind of sounds you heard from the air conditioner, remember to fix them as soon as possible. And in order to avoid some problems of air conditioner, it is better for us to maintain the air conditioner unit regularly, especially for the air filter, we should replace the air filters frequently according to the instruction.