Home > Maintenance Service Please call the dedicated toll-free number that will be provided at the time of contract during the following business hours. If you have a special maintenance service contract, we can respond 24 hours a day, 365 days a year. Please call the dedicated toll-free number provided when you subscribe to the special maintenance service. Please call the nearest branch, sales office, or branch office in the "Domestic Service Base List" within the following business hours. (Please note that some sales offices have different phone numbers depending on the content of your inquiry.) If maintenance such as repair is required, spot maintenance service is available (additional cost is required). List of domestic service bases Information on business hours Monday-Friday: 9: 00-17: 30 / Saturday: 9: 00-14: 30 / Sundays and national holidays: Not accepted. * However, the national holidays will be transfer holidays and December 31, January 2 and 3 will be holidays. Information on maintenance contract service We offer various maintenance services according to customer needs. System maintenance service (customers using system-related products) Spot maintenance service (customers who have not contracted for maintenance) About the conservative education system List of domestic service bases Information on maintenance contract service System maintenance service (customers using system-related products) Spot maintenance service (customers who have not contracted for maintenance) About the conservative education system List of domestic service bases Safety labeling of long-term products