Washing machine repairs are among the most cost-effective DIY projects. Drain pump filter blockages cause 80% of "won't drain" issues—simply unscrew the filter, drain the water, and clean it. Door seals, drain pumps, and suspension rods are common replacements. Front-loaders need the door gasket wiped dry to prevent mold. Error codes (OE, 5C, E20) point to specific faults. Our guides cover LG, Samsung, Whirlpool, and all major brands. Always disconnect power and water before starting. Level the machine to prevent vibration.