#1 how to Maintenance this product?
Clean lint screen before and after each cycle.
Removing accumulated lint: From inside the dryer cabinet: Lint should be removed every 2 years or more often, depending on dryer usage. Cleaning should be done by a qualified person. From the exhaust vent: Lint should be removed every 2 years, or more often, depending on dryer usage.
Keep area around dryer clear and free from combustible materials, gasoline, and other flammable vapors and liquids.
Keep dryer area clear and free from items that would obstruct the flow of combustion and ventilation air.