Customers seeking technical support or assistance from Fuji Electric in North America can reach their dedicated customer service team through the toll-free telephone number 1-888-900-3854. For global inquiries, corporate headquarters, or regional branch offices located outside of North America—such as in Europe or Asia—specific contact numbers vary by country, though regional distribution centers and local technical help desks maintain designated phone lines published on their official corporate websites to assist clients with product troubleshooting, inverter configurations, and drive system maintenance.