The reversal treatment of range hood refers to the reversal of wind direction caused by external environment or fault during the use of range hood, which leads to the failure of exhaust function. At this time, it is necessary to reverse the range hood to restore its normal function.

The reverse treatment method is as follows:

1. Check whether the air duct connection of the range hood is loose or damaged, and repair or replace it in time if there is any problem.

2. check whether there is foreign matter or dirt in the pipeline, and clean the found foreign matter and dirt.

3. check whether the fan impeller is stuck. if it is stuck, repair or replace the fan.

4. check whether the circuit of the range hood is connected normally, and repair or replace it in time if there is any problem with the circuit.

5. according to the models and specific operation methods of different range hoods, reverse processing is carried out.

In order to avoid the reverse problem of the range hood, the following measures can be taken:

1. When installing the range hood, you should choose professional installation services provided by regular manufacturers and install it correctly according to the instruction manual to ensure its normal operation.

2. Maintain the range hood regularly, and clean up the oil dirt and dust in the range hood and wind tunnel in time, so as to avoid pipeline blockage and affect the efficiency of the fan.

3. When using, don't put large or overweight cooking utensils down or turn them up to avoid blocking the range hood and causing backflow.

4. Don't use a fire source with too high temperature, so as to avoid generating too much oil smoke and emitting too much carbide.

In short, the reversal treatment and daily maintenance of the range hood are very important for the normal operation and use of the range hood. Users should increase regular maintenance and management to avoid the reversal problem, thus ensuring the use effect and safety.