Roomba Error Codes (Light Codes): The Complete Guide
Charging error 3 fix on my $50 Roomba 560 - YouTube
iRobot Roomba 650 Wi-Fi Vacuum With Charging Base Saying Charging Error 3 | eBay
Roomba 551 Troubleshooting - iFixit
Roomba j7+ I have just gotten error 30 this morning and worked fine then at 9PM it's happened 3 times and I've emptied the bin, cleaned the sensors. 90Seconds later it appeared.