AJA Technical Service Available 24/7/365 More foodservice operations have extended their hours, with many now open for business 24 hours. When you’re committed to serving your customers throughout the night, you need a company that is just as committed to supporting its equipment. A.J. Antunes & Co. is proud to announce our technical support representatives are available 24 hours a day to provide troubleshooting for all our equipment. If you need technical support on your A.J. Antunes & Co. equipment, call (877) 392-7854. A.J. Antunes & Co. has an in-house team of fully trained technical service representatives who work closely with our Product Development team.