I started getting code 30s after taking my bike back out after last winter. They were intermittent. For me the errors were stopped by cleaning the battery contacts, on the battery and on the bike, and squirting a little dielectric grease on the contacts. Then I put the battery in, took it out, repeatedly several times.My Radrover with 1500 miles (bought in 2016) keeps giving a code 30 maintain error and power shuts off. I have carefully check all connections (twice). Since I’m out of warranty, is the bike just junk now?