Why is the small fan of the Tiguan not working?
3 Answers
Reasons and solutions for the non-operation of the Volkswagen Tiguan's air conditioning electronic fan are as follows: 1. Poor contact of the main control switch. Solution: Use a multimeter to measure the contact resistance of the main control switch. If the resistance is too high or zero, repair or replace it. 2. Damage to the fan motor coil. Solution: Use a multimeter to measure the contact resistance of the main control switch. If the resistance is too high or zero, repair or replace it. 3. Loose fastening screws between the fan motor and the blade. Solution: Tighten the screws between the fan motor and the blade promptly.
Last time my Tiguan also had the small fan not working issue, and after a lot of troubleshooting, I found there were quite a few possible causes. The most common one is the fan motor aging or burning out—constant spinning over time makes it prone to overheating and short-circuiting. Next is a blown fuse; the car's fuse box is under the steering wheel—locate the fan section, gently pull it out to check, and if it's blackened, it's blown. Poor wiring connections, like loose or rusted plugs, can also block the current. A faulty relay might cause control failure too. I suggest first checking the fuse yourself—buy a new one and try replacing it; it costs less than 10 yuan to fix. If the fan still doesn’t spin, check the motor for unusual noises—grinding sounds mean it’s about to fail. If that doesn’t work, you’ll need a professional. A non-working fan means the AC system is useless, which is especially risky in summer when the car gets stuffy and hot. During regular maintenance, ask the technician to inspect the wiring. Also, avoid using max fan speed too often to extend its lifespan.
Having driven for over a decade, I'm no stranger to issues like small fans not spinning. The key lies in daily maintenance. The fan primarily relies on the cooling motor and stable wiring. Persistent non-spinning could indicate power supply problems, such as aged fuses blowing due to unstable voltage—it prioritizes protection then; accumulated dust on fan blades can jam rotation; or worn control switch contacts failing after frequent use. I always keep spare common fuses in the car and wipe fan blades when lifting the hood; monthly checks ensure tight wiring connections to prevent oxidation. Before failure, subtle noises or slowed rotation often occur—early detection saves big. Don't delay fixes—the fan system links to AC, and driving fatigues easily in high heat, compromising safety. Good habits ensure 5-6 years of trouble-free fan operation.
