I have a Sevcon Gen4 48VDC controller off of a 2014 Polaris Ranger EV. It started throwing a Fault Code 7 (7 flashes) The most information I can find is this is some type of “Voltage Protection”. I am having no other issues with batteries, contractors, ex. The batteries are 2 year old Trojans. I have removed and cleaned all connections, load tester and tested all batteries with a Hydrometer. All are showing normal. I believe the controller has some internal issue. Is this something you can repair? Do you have a standard repair charge for this type controller?