What Causes Abnormal Noises When Using the Air Conditioner?

1 Answers
GenesisFitz
07/29/25 7:34pm
Reasons for abnormal noises in the air conditioner: 1. Whether the filter screen is cleaned regularly. If the filter screen is too dirty, obstructed airflow not only increases the noise of the indoor unit but also causes frequent standby mode due to overheating protection of the indoor evaporator when the outdoor temperature is not too low, typically occurring at intervals of about 10 minutes. 2. Whether the indoor unit cover is properly closed. Sometimes, users may not securely close the cover after cleaning the filter screen or performing general maintenance, causing vibrations and noise during operation. Once the air conditioner resumes normal operation, the noise naturally decreases. Generally, the high-efficiency function will automatically stop after running for 15 minutes. Precautions: 1. The power supply voltage should not fluctuate too much (a fluctuation of ±10% is allowed), and the air conditioner should be powered by a dedicated line using a single-phase three-hole socket. Additionally, the plug should be fully inserted. 2. The indoor temperature should not be set too low, as it may be harmful to the human body. Adjust the set temperature appropriately.
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