It's their job to replace faulty parts, install new units, and ensure that the work they do will last. A refrigeration technician will also spend some time answering their clients' questions and maintaining their stock levels of important parts. As a refrigeration technician, you will be responsible for processing and completing work orders, installing new refrigeration systems, troubleshooting mechanical failures, and performing equipment maintenance. You may also be required to advise on equipment upgrades and alternate cooling units. As a refrigeration technician, you will be responsible for processing and completing work orders, installing new refrigeration systems, troubleshooting mechanical failures, and performing equipment maintenance. You may also be required to advise on equipment upgrades and alternate cooling units.