OTC DAIHEN Welding Service & Support

24/7 Customer Service

Technical responses from highly trained professionals any time, day or night.

Emergency Support

If you have a technical emergency after normal business hours, technical support is available via phone. Simply call our support line, 1-866-460-8566,  and leave your name, company name, phone number, and a brief description of your problem. A service technician will return your call as quickly as possible.

Request Spare Parts

The best way to prevent downtime is to have a good supply of spare parts. We recommend stocking a robust supply of key parts for both emergency situations and the wear and tear of normal production. For a free evaluation of your solution and recommendations on spare parts to stock, fill out the form on this page or call our non-emergency customer support line.

In-House Repair Request (RMA)

If you have broken or problematic equipment, contact our service and repair team by filling out the form and emailing: or faxing: 937-667-0885. Please include Attn: Service.

We understand the impact of having essential solutions offline, and our service teams are always eager to help diagnose and repair issues to get your systems up and running again, fast.

Rental and refurbished equipment is available for many models to ensure maximum uptime of your manual welding or fully automated production line. Our streamlined RMA process puts a quote in your hands before you even send the equipment, ensuring transparency with no surprises.

Non-Emergency Support

For non-emergency technical questions, help or spare parts, drop us a line with the form on this page. We’ll be in touch within one business day. Or, you can give us a call at 888-OTC-ROBO (888-682-7626) to speak directly to a factory-trained technician during regular business hours, Monday-Friday, 8 a.m. to 5 p.m. EST.

“I would like to thank OTC DAIHEN for the awesome service and support they provided in getting our welding equipment back up and running, keeping Phoenix Welding Solutions customers happy and productive.”

– Debbie S., Phoenix Welding Solutions

Contact OTC DAIHEN Service & Support