Mike G Jurupa Valley , CA June 11, 2021 Appliance: LG Dishwasher LDT9965BD Error code: EF in flow water valve would not close so water continued flowing in when power switch was turned on I replaced the valve. Read More... Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Nut Drivers, Pliers, Screwdrivers, Wrench Set