1, first of all should check the power supply, determine the power supply is no problem and then check the motor, the general bearing is prone to lack of oil at high temperatures. If it is a motor problem, just replace the motor.
2, followed by inspection of the fan blade, first check whether the fan blade can be turned, whether it is stuck, if there is no jam, then the power supply is further checked, if it can not be turned, it may be a motor problem, if it can turn, It can be judged that there is a problem with the controller.
3, no matter from which aspect, found that the drying box does not work or other reasons, it is best to contact the original manufacturer in time, can be the best maintenance, if not, please test under the guidance of the manufacturer or please Professional maintenance personnel, remember not to open the case without understanding, causing short circuit inside the box or damage to the circuit. The blast drying oven is mainly operated by blasting, and heating without blasting may result in uneven temperature of the tank.