after the failure of the microwave oven that has exceeded the warranty period, it is necessary to contact the after-sales personnel for home maintenance at their own expense. The general maintenance fee is determined according to the failure of the microwave oven, and the door-to-door fee is fixed. If the door-to-door fee is between 8 and 1 yuan within 1 kilometers, the after-sales maintenance personnel and users will negotiate the price if it exceeds 2 kilometers.