First time posting, so thanks for the acceptance.  I have a 2017 Radrover with a weird problem. The problem is sporadic.  I can be riding for an hour (More or less), then all of a sudden I feel the bike shutting down.  I look at the display and it shows ERROR CODE 30.  I turn the bike back on, sometimes it powers up for 15-30 seconds, then shuts down again.  When the display shuts down, I still have power for a short period of time, then shuts down completely.  I have communicated with Rad and went through the ERROR CODE 30 procedure, cleaned all the connections and terminals, but it still happens.  I am leaning to the controller and I asked how much and can't get an answer from Rad.  TIA