Ego LM2020E - Fuse rating

My fuse has blown after hitting some rope i had left in my lawn. The blade/motor spin freely and there is no visible damage. After pulling out the fuse and checking it it was open. Now ordered two replacement fuses but the seller has yet to ship them and the grass is getting tall. Anybody know what the original fuse is rated it. I tried with a 50amp automotive fuse which allowed the mower to self propel but stopped as soon as i engaged the blades.