Unit was deader than dead love. First replaced the battery & got the error code for faulty controller… Ordered the part (from CHINA!) and was pretty much impressed when it arrived FROM CHINA…in about 12 days. Straightforward replacement, just need attention to match up those wires, but not really any problem for average DIY type. Powered the thing up and it’s good as new. So simple a change out that they don’t even include instructions on how to replace! Anyway….everything worked as expected and the parts delivery did surprise me considering the logistics.