1. Can't smoke: The main reason is that there is too much oil in the range hood, which leads to the blockage of the wind wheel and the air guide cover. You can clean or replace the parts.
2. Ventilation is not strong enough: it may be that the power of the fan motor of the range hood is insufficient, and the motor capacity can be changed to a larger one.
3. The air inlet filter is blocked: the air inlet is blocked by a lot of dust and other sundries, so it can be cleaned or replaced.
4. Abnormal noise from the motor: This may be caused by bearing damage or unbalanced wind wheel, and parts can be repaired or replaced.
5. Oil leakage from the range hood: the internal seal of the range hood is not tight, so you can check the fastening nuts and gaskets and replace them if necessary.
6. Flash fire occurs when starting the machine: it may be due to burning of electrical lines or abnormal power supply voltage, so it should be checked in time.
Maintenance can prolong the life of range hood and reduce the occurrence of faults. Regular cleaning, timely replacement of damaged or aging parts and good maintenance can keep the equipment running efficiently and safely.