Do i bring my weed eater back to lowes where i bought it to get it fixed

Depends wether you bought the extra warranty from Lowe's. If so they will replace it. No warranty check with the manufacturer.

No you cant,they font fix them thier,now if you recently purchased iy thier and is broken then take it back,as they will replace it or money back or store credit if before 30 days.check with sains hardware,or even ace

Saine,s hardware is where you can get it fixed