It's really not that hard, need a multimeter
A few months ago my LG washer broke. It was the water pump (to pump soiled water out of washer). Bought one from Ebay for $25 and replaced. Working perfectly since then. A few weeks ago my dryer broke too. It was the heat fuse (go search on line, happens a lot. Measure with a multimter, open circuit indicates burnt fuse). $10 from Ebay and working perfectly since then.