UncategorizedAugust 30, 2022by Alex

Why is the air conditioner humming?

Installing air conditioners is a popular solution. These mechanisms allow you to maintain optimal climatic conditions on the premises for an unlimited amount of time. The only disappointment is that such devices sometimes break down, as a result of which quality repair of air conditioners becomes a demanded solution.


Humming of the indoor unit

If the hum appears when you turn on the device, you need to check the condition of the motor and fan bearings. In the best case, it will be enough just to grease the bearings. If it does not help, you will need to replace them. If the electric motor is a non-disassembled construction, you will have to replace it completely.


If the hum is present even when turning off the device, it is worth checking the transformer. In this case, the repair of air conditioners will consist of replacing this design element with a better quality transformer or power module of the electronic type. The choice depends on the specific situation and the size of the allocated budget.


Humming of the external unit

This problem is usually explained by the unsatisfactory condition of the compressor, therefore, when repairing air conditioners, specialists first check the presence of oil in the crankcase, the integrity of the mounts for vibration isolation, and the level of resistance of the windings.


In the first situation, it is necessary to add oil with the help of the injector. It is very important to choose the right oil, otherwise, the effect will not be as noticeable. In the second, it is necessary to replace the vibration isolators. If the problem is a decrease in resistance (you need to do a special test to check), then the situation can be corrected by adding special additives.


Sometimes the external unit hums because of a problem with the electric motor or bearings. In this case, it is necessary to act the same way as in the situation with the humming of the internal unit. The order of the mentioned actions for air conditioner repair does not change depending on the unit.


Given the complexity of the design, only people with the appropriate experience will be able to do air conditioning repair in San Diego on their own. Otherwise, there is a risk of deteriorating the current state of the units.


You should entrust air conditioning repair to the dedicated professionals at SDAC Heating & Air Conditioning. In this case, troubleshooting will pass very quickly, and the provision of a corporate warranty will support the result of the work.


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