TP-M5000N FAQs & Troubleshooting TP-M5000N Not your product? Sort by Updated Date Popularity 3 Results 1. 12/11/2019 What do the indicator lights mean? 2. 01/14/2015 The indicators show that a system error has occurred. 3. 01/14/2015 The indicators show that the machine is in boot mode (operating system error). Error Messages/LED Indications FAQs & Troubleshooting