Solutions:

• Stop using immediately and cut off power supply
• Contact professional technicians to inspect motor condition
• Replace damaged wires or insulation materials
• Inspect and improve grounding system

Solutions:

• Check if power lines are normal
• Clean dust and foreign objects inside the motor
• Check if the protective switch is working properly
• Replace protective switch or motor if necessary

Solutions:

• Check if the power plug is properly inserted
• Replace blown fuse
• Check if the power cord is damaged
• Replace faulty control switch

Solutions:

• Clean debris and grease in the drain pipe
• Check the operation of the drain pump
• Replace faulty water level sensor
• Adjust the slope and installation position of the drain pipe

Solutions:

• Check if the motor has burn marks
• Replace loose or broken drive belt
• Clean the rotating shaft and add lubricating oil
• Inspect the control circuit and repair faults

Solutions:

• Thoroughly clean or replace the filter
• Check fan operation and adjust speed
• Clean pipe blockages and repair air leaks
• Adjust wind direction to ensure oil fume absorption