The "Product Description" section of the manual details the physical components. Understanding these is key to using the "top" control panel correctly.
The manual’s early pages include a concise troubleshooting table. The top three real-world errors are:
If you require the full official manual (including warranty and FDA statements), contact Empi customer support at 1-800-328-2536, or visit their website to request a PDF. However, for daily use, the "top" information above is all you need to start your pain relief journey safely.