--- title: Training & Technical Resources | RDT description: Explore free training and technical support resources for RDT equipment to build your skills in installation, maintenance, and troubleshooting with expert guidance. --- - [Products](https://www.rdtonline.com/products?hsLang=en) [EcoCool](https://www.rdtonline.com/products/eco-cool?hsLang=en) [EcoSmart](https://www.rdtonline.com/products/ecosmart?hsLang=en) [MultiRak](https://www.rdtonline.com/products/multirak?hsLang=en) [PremierPak](https://www.rdtonline.com/products/premierpak?hsLang=en) [FlowPak](https://www.rdtonline.com/products/flowpak?hsLang=en) - [Resources](https://www.rdtonline.com/resources?hsLang=en) [Training & Resources](https://www.rdtonline.com/resource-page?hsLang=en) [FAQ](https://www.rdtonline.com/frequently-asked-questions?hsLang=en) [Literature](https://www.rdtonline.com/resources?hsLang=en) [Warranty](https://www.rdtonline.com/warranty?hsLang=en) [Food Waste Solutions](https://www.rdtonline.com/food-waste?hsLang=en) [Energy Savings](https://www.rdtonline.com/energy-savings?hsLang=en) [Videos](https://www.rdtonline.com/resources#video) - [Team](https://www.rdtonline.com/team?hsLang=en) [![RDT — Refrigeration Design Technologies](https://www.rdtonline.com/hs-fs/hubfs/RDT%202020%20Logo%20Files/RDT%20Vertical%20Logo%20Blue.png?width=72&height=95&name=RDT%20Vertical%20Logo%20Blue.png)](https://www.rdtonline.com/?hsLang=en) - [Blog](https://solutions.rdtonline.com/blog?hsLang=en) - [Contact](https://www.rdtonline.com/contact-us?hsLang=en) - [A2L](https://solutions.rdtonline.com/a2l-refrigeration-resource-page?hsLang=en) - [Find a Rep](https://www.rdtonline.com/find-a-rep?hsLang=en) - Products - [EcoCool](https://www.rdtonline.com/products/eco-cool?hsLang=en) - [EcoSmart](https://www.rdtonline.com/products/ecosmart?hsLang=en) - [MultiRak](https://www.rdtonline.com/products/multirak?hsLang=en) - [PremierPak](https://www.rdtonline.com/products/premierpak?hsLang=en) - [FlowPak](https://www.rdtonline.com/products/flowpak?hsLang=en) - Resources - [Training & Resources](https://www.rdtonline.com/resource-page?hsLang=en) - [FAQ](https://www.rdtonline.com/frequently-asked-questions?hsLang=en) - [Literature](https://www.rdtonline.com/resources?hsLang=en) - [Warranty](https://www.rdtonline.com/warranty?hsLang=en) - [Food Waste Solutions](https://www.rdtonline.com/food-waste?hsLang=en) - [Energy Savings](https://www.rdtonline.com/energy-savings?hsLang=en) - [Videos](https://www.rdtonline.com/resources#video) - [Team](https://www.rdtonline.com/team?hsLang=en) - [Blog](https://solutions.rdtonline.com/blog?hsLang=en) - [Contact](https://www.rdtonline.com/contact-us?hsLang=en) - [A2L](https://solutions.rdtonline.com/a2l-refrigeration-resource-page?hsLang=en) - [Find a Rep](https://www.rdtonline.com/find-a-rep?hsLang=en) # Training & Technical Resources Learn directly from the experts who build and support these systems. We offer free, hands-on training and technical guidance to help you install, operate, and maintain your RDT equipment with confidence. Contact our warranty and technical support team to schedule training, or explore videos, guides, and resources below. [Request Hands-On Training](https://www.rdtonline.com/training-resources#training) [Contact Technical Support](https://www.rdtonline.com/contact-us?hsLang=en) ![training (1)](https://www.rdtonline.com/hs-fs/hubfs/training%20(1).png?width=940&name=training%20(1).png "training (1)") ## Find What You Need ### [Training Videos Short practical walkthroughs and tips](https://www.rdtonline.com/training-resources#videos) ### [Troubleshooting Quick answers to common issues](https://www.rdtonline.com/training-resources#troubleshooting) ### [Maintenance Resources Best practices and preventative care](https://www.rdtonline.com/training-resources#troubleshooting) ### [Product Resources Product-by-Product Resources and FAQs](https://www.rdtonline.com/training-resources#manuals) ### [Articles & Tips Educational blog content](https://www.rdtonline.com/training-resources#resources) ### [Warranty & Support Connect with our Team](https://www.rdtonline.com/training-resources#support) ## Free Hands-On Training Our technical support team provides free in-person training to help technicians and operators understand equipment setup, maintenance, and troubleshooting. Learn directly from the experts who support these systems every day. - Delivered by certified RDT technical specialists - Available at the RDT facility or we'll come to you at no cost - Flexible scheduling to meet your needs ### Contact the Warranty & Tech Team Ready to schedule training or need technical support? Reach out directly. [Call (972) 937-3215](tel:+19729373215) [Email for Training](mailto:techsupport@rdtonline.com) Our team typically responds within one business day. ## Training Videos From quick fixes to in-depth walkthroughs, these videos are built to help you diagnose, maintain, and get the most out of your RDT equipment.   Want more? Our full video library lives on YouTube—subscribe to catch every new upload. 1:10 ### TOP 3 ALARM CODES 60-second explanation of the PSA, LSH and HSH alarm codes and what they mean. [Watch Now](https://www.rdtonline.com/hubfs/Training%20Videos/Final/16%20x%209%20-%20horizontal/RDT%20Training%20Video%20-%20Codes%20PSA%20LSH%20HSH.mp4?hsLang=en) 1:10 ### COA ALARM CODE Starting up your unit and seeing this code? Here's what it means. [Watch Now](https://www.rdtonline.com/hubfs/Training%20Videos/Final/16%20x%209%20(horizontal)/RDT%20Training%20Video%20-%20COA%20Alarm%20Code.mp4?hsLang=en) 1:45 ### DOR ALARM CODE Common to see on startup, here's what the code means and how to handle it. [Watch Now](https://www.rdtonline.com/hubfs/Training%20Videos/Final/16%20x%209%20-%20horizontal/RDT%20Training%20Video%20-%20DOR%20Alarm%20Code.mp4?hsLang=en) [View Full Video Library on YouTube](https://www.youtube.com/@RDTsystems) ## Additional Resources ### Articles & Insights MAINTENANCE #### Refrigeration Maintenance Planning for Reliable Walk-In Performance Simple habits and routines that extend equipment life and reduce service calls. [Read Article](https://solutions.rdtonline.com/blog/refrigeration-maintenance-planning-reliable-walkin-performance?hsLang=en) WHAT TO WATCH FOR #### How to Spot Refrigeration System Failures Before They Happen Most refrigeration failures have early warning signs.  [Read Article](https://solutions.rdtonline.com/blog/how-to-spot-refrigeration-system-failures-before-they-happen?hsLang=en) ENERGY EFFICIENCY #### 4 Simple Ways to Keep Cold Air Inside Your Walk-In  Tips for reducing cold air loss and lowering energy costs. [Read Article](https://solutions.rdtonline.com/blog/simple-ways-keep-cold-air-inside-walkin?hsLang=en) ### Downloadable Tools PDF #### Maintenance Checklist [Download](https://www.rdtonline.com/hubfs/RDT%20Marketing%20Assets/Preventive%20Maintenance%20Checklist%20-%202026.pdf?hsLang=en) PDF #### A2L REFERENCE GUIDE [Download](https://www.rdtonline.com/hubfs/RDT%20A2L%20GUIDE%20Reference_Final%202025.pdf?hsLang=en) PDF #### A2L FAQs [Download](https://www.rdtonline.com/hubfs/A2L%20assets/RDT%20A2L%20Systems%20FAQ.pdf?hsLang=en) PDF #### SMART STARTUP GUIDE [Download](https://www.rdtonline.com/hubfs/K12%20Assets/Smart%20Startup%20-%202026.pdf?hsLang=en) ## Troubleshooting & Maintenance These are the most common questions our technical team receives from technicians and service teams. Article + Video ### Common Alarm Conditions The alarms technicians encounter most often — what triggers them, what to inspect, and how to resolve them quickly. Read Article [Watch Video](https://www.rdtonline.com/training-resources#videos) Educational Article ### Error Codes & What They Mean A grouped reference covering the most common error codes, their causes, and the correct steps to diagnose and resolve each one. Read Article Checklist + Tips ### Preventative Maintenance Tips Quick wins and scheduled routines that protect equipment performance and reduce the likelihood of a service call. Download Checklist ## MORE RESOURCES Learn more about RDT equipment — and the solutions they offer. ### BROCHURES & GUIDES Read more here with product-by-product resources [Access](https://www.rdtonline.com/resources?hsLang=en) ### FAQs Find answers to questions about our company, our products, and more [Access](https://www.rdtonline.com/frequently-asked-questions?hsLang=en) ### FOOD WASTE SOLUTIONS Take a closer look at ways to reduce food waste in commercial foodservice operations. [Access](https://solutions.rdtonline.com/food-waste?hsLang=en) ### ENERGY SAVING SOLUTIONS Learn more about ways to save energy and reduce costs for commercial refrigeration. [Access](https://solutions.rdtonline.com/energy-savings?hsLang=en) ## Frequently Asked Questions Where can I watch all RDT training videos? The three most recent training videos are featured on this page. Our full video library is available on the [RDT YouTube channel](https://www.youtube.com/@RDTsystems). How do I schedule hands-on training? Contact our warranty and technical team directly by phone or email to arrange a training session. Training is free and can be conducted on-site or at an RDT facility. See the [Free Hands-On Training](https://www.rdtonline.com/training-resources#training) section above for contact details. Who should I contact for technical support? Reach out to the RDT Warranty & Technical team by phone at **(972) 937-3215** and selecting option 2 or email **techsupport@rdtonline.com**. Our team is available during business hours and typically responds within one business day. What should I check before contacting support? We recommend reviewing our [Troubleshooting & Maintenance](https://www.rdtonline.com/training-resources#troubleshooting) resources first. Many issues can be resolved quickly using these guides. If the issue persists, our team is ready to help. Where can I find equipment brochures? All product resources are available on the [Brochures and Guides](https://www.rdtonline.com/resources?hsLang=en) page. ## Need Help or Want to Learn More? Our technical support team is here to help — whether you need training, support, or just a quick answer. [Request Training](https://www.rdtonline.com/training-resources#training) [Contact Technical Support](https://www.rdtonline.com/contact-us?hsLang=en) [View Training Videos](https://www.rdtonline.com/training-resources#videos) #### Contact Us Refrigeration Design Technologies P.O. Box 622. Waxahachie, TX 75168 1808 FM Road 66. Waxahachie, TX 75167 Phone: [(972) 937-3215](tel:9729373215) Toll-Free: [(800) 736-9518](tel:8007369518) Fax: (972) 937-0970 email: [info@rdtonline.com](mailto:info@rdtonline.com) #### Connect With Us [Privacy Policy](https://www.rdtonline.com/privacy-policy?hsLang=en) Actively Supporting ![FCSI — Foodservice Consultants Society International](https://www.rdtonline.com/hs-fs/hubfs/logo-fcsi-1.png?width=180&name=logo-fcsi-1.png) © 2026 Refrigeration Design Technologies, Inc. — All Rights Reserved. ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "caption" : { "@type" : "MediaObject", "contentUrl" : "https://www.rdtonline.com/media-transcripts/206308456880/en.vtt", "inLanguage" : "en", "name" : "en Captions" }, "contentUrl" : "https://2461914.fs1.hubspotusercontent-na1.net/hubfs/2461914/video_assets/206308456880/inherited/web_optimized.mp4", "dateModified" : "2026-05-22T15:06:37.673Z", "duration" : "PT1M10S", "height" : 1080, "name" : "RDT Training Video - Codes PSA LSH HSH", "thumbnailUrl" : "https://2461914.fs1.hubspotusercontent-na1.net/hubfs/2461914/Training%20Videos/Final/16%20x%209%20-%20horizontal/RDT%20Training%20Video%20-%20Codes%20PSA%20LSH%20HSH.mp4/medium.jpg", "uploadDate" : "2026-01-29T15:33:29.275Z", "width" : 1920 } ``` ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "caption" : { "@type" : "MediaObject", "contentUrl" : "https://www.rdtonline.com/media-transcripts/206308753001/en.vtt", "inLanguage" : "en", "name" : "en Captions" }, "contentUrl" : "https://2461914.fs1.hubspotusercontent-na1.net/hubfs/2461914/video_assets/206308753001/inherited/web_optimized.mp4", "dateModified" : "2026-05-22T15:13:14.030Z", "duration" : "PT1M3S", "height" : 1080, "name" : "RDT Training Video - COA Alarm Code", "thumbnailUrl" : "https://2461914.fs1.hubspotusercontent-na1.net/hubfs/2461914/Training%20Videos/Final/16%20x%209%20(horizontal)/RDT%20Training%20Video%20-%20COA%20Alarm%20Code.mp4/medium.jpg", "uploadDate" : "2026-01-29T15:33:20.231Z", "width" : 1920 } ``` ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "caption" : { "@type" : "MediaObject", "contentUrl" : "https://www.rdtonline.com/media-transcripts/206308729017/en.vtt", "inLanguage" : "en", "name" : "en Captions" }, "contentUrl" : "https://2461914.fs1.hubspotusercontent-na1.net/hubfs/2461914/video_assets/206308729017/inherited/web_optimized.mp4", "dateModified" : "2026-05-22T15:13:52.779Z", "duration" : "PT1M45S", "height" : 1080, "name" : "RDT Training Video - DOR Alarm Code", "thumbnailUrl" : "https://2461914.fs1.hubspotusercontent-na1.net/hubfs/2461914/Training%20Videos/Final/16%20x%209%20-%20horizontal/RDT%20Training%20Video%20-%20DOR%20Alarm%20Code.mp4/medium.jpg", "uploadDate" : "2026-01-29T15:33:35.768Z", "width" : 1920 } ```