My EZ Robot isn't powering up correctly. I just took the unit out of the box for the first time, completed the barrel wiring and connected it to the battery case. The unit did nothing until I picked it up and touched the heat sinks with two fingers when it flashed briefly (both blue and red) and then went dark. The batteries are fresh and I've checked the connections on the sinks and they seem fine. I've searched the boards but can't find a diagnosis.
Can anyone help?