A faulty dishwasher pump can result in poor cleaning performance and water drainage issues. To replace the pump, first disconnect the dishwasher from the power supply and remove the lower panel. Drain any standing water before accessing the pump, located at the bottom of the appliance. Unscrew the pump, disconnect the hoses, and replace it with a new one. Be sure to check for any clogs or debris that might have caused the pump failure. This guide provides detailed instructions on replacing your dishwasher pump.