What is the reason for the noise when the Baojun 730 air conditioner is turned on?
4 Answers
It may be the sound of the air conditioning compressor electromagnetic clutch engaging, which is normal. It could also indicate an issue with the air conditioning system. Reasons for clutch noise: When the cooling reaches the set temperature or the air conditioning pipeline pressure is too high, the compressor electromagnetic clutch will automatically disengage, and the compressor pulley will idle. When cooling is needed again, the compressor electromagnetic clutch will engage, producing noise during engagement. Air conditioning problem solutions: Adjust the internal pressure of the air conditioning pipeline, adjust the tightness of the air conditioning belt, and regulate the refrigerant dosage. It is advisable to visit a 4S store or a professional auto repair shop promptly.
As a car mechanic, I've seen many Baojun 730 models with AC noise issues. The most common causes are worn compressor bearings or loose belts, which create squeaky sounds when running, especially noticeable when using AC in summer. Another possibility is dust-clogged condenser fans causing motor humming noises that intensify on bumpy roads. For diagnosis: first check belt tension by hand-pulling, then locate the noise source - compressors usually make clicking sounds while fans produce whirring noises. Address minor issues promptly - replacing belts or cleaning fan blades costs little, but delaying until compressor failure leads to expensive repairs. Regular maintenance is key: clean AC systems periodically and inspect belt wear every six months.
My Baojun 730 has been running for over three years, and the AC started making noise as soon as I turned it on. At first, I didn't pay much attention, but the noise gradually became louder, like a fan humming. I asked a mechanic at the repair shop, and he said it might be due to small stones stuck in the fan blades or dirt in the blower—just cleaning it would help. It could also be that the compressor was low on lubricant, causing friction noise. I took out the AC filter myself and found a lot of dust buildup; after cleaning it, the noise reduced significantly. The mechanic also mentioned that old belts can squeak, and replacing them would solve the issue. Now, I check the filter and fan every quarter to keep them clean, and the strange noises haven't returned. This experience taught me that addressing small issues early prevents them from turning into bigger, costlier problems that waste both money and time.
As a car enthusiast, I've studied the air conditioning system of the Baojun 730. When the AC is turned on, abnormal noises usually stem from a few common causes: worn or aged compressor bearings causing a clicking sound when rotating; loose condenser fan or dirty blades producing a buzzing noise; loose belts creating a squeaking sound from friction; or blocked AC pipes leading to a whistling airflow sound. Not fixing it promptly can increase fuel consumption and even damage other components. The inspection is simple: start the engine, turn on the AC, and carefully listen for the source of the noise. In most cases, cleaning the fan or adjusting the belt will suffice. Regular maintenance is key—don't let abnormal noises turn into hidden hazards.
