Chosen Solution
Hi. I have a Greenworks Weed Whacker Model #21212. I was in the middle of using it when it suddenly stopped working. Everything checked out and working as far as extension cord and power supply. After much research it came down to the thermal fuse probably burning out. Was hoping to get some help in figuring out how to replace this AND hopefully without having to solder the replacement fuse. THANK YOU!
They don’t list parts for it. Is it under warranty? If so return it and replace it or get a refund. If it out of warranty you should take it to the seller and see if they can repair it or refer you to someone who can. Or you can take it apart and try to repair it, I don’t know your technical skills so you will have to decide if you want to try.