What is the reason for the Chery QQ air conditioning fan not working?
2 Answers
Fan partial function loss and fan not turning specific reasons are as follows: Fan shroud failure: The distance between the fan shroud and the top of the fan blades is too large or the shroud is broken, causing the air drawn by the fan operation not to be drawn from the atmosphere opposite the radiator core but from the same side. Therefore, the air from the fan operation cannot flow out between the radiator cores, leading to the fan not turning. If a V-belt drive is used, it may be due to excessive V-belt deflection. Water temperature sensor failure: The pins of the water temperature sensor connector are dirty, the pins are not tightly connected, or there is a short circuit or open circuit in the wiring. Fan blade failure: Fan blades are broken, wiring is short-circuited or open-circuited. The ECU computer is damaged. The high and low-speed relays of the fan are damaged.
I've been driving a Chery QQ for ten years, and the issue of the AC fan not spinning is quite common. Usually, the first thing to check is a blown fuse. The fuse box is located near the hood or under the steering wheel, and replacing it costs just a few bucks. If the fan doesn't start at all, it could also be a faulty motor, stuck bearings, or burnt coils. If you're handy, taking it apart and replacing it isn't too difficult. Worn-out wiring and loose connections are also frequent culprits, especially in humid weather when corrosion can break the connection and stop the current. Another possibility is a relay failure—a classic symptom is the fan making a 'clunk' sound and then stopping. Driving without a fan in hot weather slows down the AC cooling, making the car uncomfortably hot. My car had the same issue last year, and it cost me 200 yuan to fix at the repair shop. I recommend starting with the simple checks like the fuse before moving on to other possibilities, and don't delay to avoid damaging the compressor. Regularly cleaning dust off the fan blades can also prevent this problem.
