What Causes the Loud Noise from the BYD Qin's Air Conditioning Motor?
2 Answers
BYD Qin's air conditioning motor produces loud noise due to the following reasons: damaged compressor bearings; excessively loose compressor belt tension; refrigerant charge exceeding the standard, increasing the compressor's load; incorrect type of refrigerant added. Solutions for loud noise from the car air conditioning blower: If the noise is caused by damaged blower bearings, generally replacing the damaged parts will suffice. If the noise is due to deformed exhaust fan blades or a damaged exhaust fan motor, the exhaust fan needs to be replaced. If the noise is caused by excessive dirt inside the air conditioning system, cleaning the air conditioner is necessary. If the blower is damaged, it needs to be repaired. Car air conditioning maintenance methods: Comprehensive air conditioning inspection: When using the air conditioning for the first time in summer, inspect the air conditioning system first, such as checking the refrigerant and whether the air filter is too dirty through the reservoir, and whether there are foreign objects in the radiator. Pay attention to air conditioning cleaning: The air filter should be replaced regularly, especially in spring when there is more sand and dust, and willow catkins flying around, which can stick to the filter and breed bacteria, causing a musty smell in the air conditioning. Additionally, the condenser should be cleaned periodically, and the radiator should be removed for thorough cleaning.
When I turn on the air conditioning in my BYD Qin, the increased motor noise is quite annoying. It might be caused by aging compressor bearings or loose installation, especially in hybrid mode when the system load increases, making the motor vibration more noticeable. Sometimes, a loose belt or dust on the fan blades can also create extra noise. I need to regularly check the cooling system to avoid overheating and dust buildup, which not only increases noise but also affects battery life. I recommend keeping an eye on the temperature display while driving—normal air conditioning operation shouldn’t be so loud. If the noise persists, it’s best to visit a 4S shop for a professional inspection. Spending a few hundred yuan on maintenance is better than facing major repairs later, especially since electronic air conditioning components are prone to dust accumulation.
