Hotel lampblack machine doesn't smoke. What's wrong?

1. The partition plate in the middle of the exhaust pipe is not straight, or the exhaust pipe is blocked artificially, and the partition plate is not straight, or the sundries in the exhaust pipe are removed. 2. The wind wheel is reversed or damaged. In the case of reverse rotation, the wind wheel needs to be disassembled and reassembled. If it is damaged, it is recommended to replace the wind wheel. 3. If the exhaust pipe is blocked, clean the sundries in the exhaust pipe. 4. The capacitor is damaged, which causes the motor of the range hood to rotate reversely, and no smoke can be sucked. Replace the capacitor. 5. The motor is damaged, the power decreases, or the exhaust pipe is too long, and the resistance increases too much, resulting in no smoke. It is recommended to replace the motor. Development: Daily maintenance of range hood. 1. Crush the remaining soap from daily use at home, add water and stir it into a paste, and then apply it to the oily place of the range hood. After a period of time, scrub with a clean rag and then apply a layer of soap paste, which can prevent oil pollution and make the range hood as bright as new. 2. The gap between the blades is so small that it is difficult to put your hand in when cleaning. If you want to clean, you need to remove the fan blades and scrub them slowly. After scrubbing, you might as well apply a layer of glue to the fan blades. After a few months, take down the sticky glue and reapply it, and you can continue to use it. 3. Although it is not difficult to clean the oil storage box, the oil pollution prevention work must be done well. It is suggested to stick a layer of plastic wrap in the box, completely cover the box, slightly beyond the box surface, let the lampblack be adsorbed on the plastic wrap, and then pump it up at regular intervals and replace it with a new one. 4. Don't turn off the range hood immediately after cooking every time, let it continue to run for 1 min, and pump the residual oil fume to the outside, which can completely eliminate the oil fume and reduce the oil condensation.