There are many reasons why the range hood doesn't smoke. Only by checking out the reasons will it be easy to repair it. Let's first see what causes the range hood not to smoke.

reasons why the range hood doesn't smoke:

1. The partition in the middle of the exhaust duct is not straight or open (there is such a door in the exhaust duct of the old range hood), or the exhaust duct is artificially blocked.

2. The wind wheel is reversed or damaged.

3. The smoke exhaust pipe is blocked.

4. The capacitor is damaged (two-phase electricity needs a capacitor to rotate forward, and three-phase electricity doesn't need a capacitor), which causes the motor of the range hood to reverse, which may lead to no oil droplets in the oil dripping box.

5. The motor is damaged, the power is reduced, or the exhaust duct is too long and the resistance is increased too much.

treatment method:

1. Listen to the wind, turn the air volume of the range hood to the maximum, and then listen carefully to the sound. If there is only one "beep" sound in the wind, it means normal. If there are different sounds, it means that the air outlet is blocked.

2. Look at the wind wheel. This situation is rare, and generally does not occur. Just observe whether the wind wheel of the range hood rotates counterclockwise. If it reverses, there will naturally be no air volume. If the wind wheel itself is damaged, the bearing may be damaged, in which case the wind wheel needs to be replaced.

3. Try suction. Similarly, turn the air volume of the range hood to the maximum, then stick a newspaper on the tuyere to see if the newspaper can absorb it, and then unplug the smoke exhaust pipe of the range hood to see if it is as big as the last wind. If there is a big difference, it can be concluded that the smoke exhaust pipe is blocked. If the air volume is almost the same twice, it is the quality problem of the range hood.

4. The motor is damaged. In this case, the smoker should stop working, and there is no buzzing sound, so it is easy to judge.

5. Light the lighter or candle, start the motor, and check whether it sucks air or blows air. Blowing air proves that the motor is reversed, but sucking air proves that the motor power is too small, the blades are deformed and the exhaust duct is too long.