What to Do When There's an Odor from the Car's Heater?
2 Answers
Solutions for odors from the car's heater include: 1. Running the fan at high speed to eliminate the odor; 2. Cleaning the air conditioning ducts; 3. Replacing the air conditioning filter. The functions of the car air conditioning system are: 1. Achieving cooling effects through the continuous cycle of refrigerant; 2. Removing dust, odors, smoke, and toxic gases from the car's interior air, making the air fresher, and humidifying the interior air to increase relative humidity. Maintenance methods for car air conditioning include: 1. Avoid setting the temperature too low; 2. Control the direction of the air vents; 3. Avoid prolonged use; 4. Occasionally use high fan speed; 5. Turn off the air conditioning when driving at low speeds.
Oh, I've been driving for over a decade and encountered smelly heater issues several times. That one time it was a musty odor, probably mold growing on the AC evaporator because water didn't dry completely after summer AC use. I remember first replacing the cabin air filter - located under the glove box - and when I took it out, it was completely covered in grayish-black gunk. The new filter cost less than 50 yuan and reduced the smell significantly. If the odor persists, there might be debris or bacterial buildup in the ducts, so I bought an AC system cleaner spray, applied it through the air intake, and ran the fan for ten minutes. Prevention is key - turning off the AC before parking to let natural air circulate and dry the system. Doing this regularly prevents most problems. Once it becomes a habit, it takes almost no time to maintain.
