LG refrigerator water dispenser stays on for 5 minutes. Appliance Repair Troubleshooting Questions › Category: Refrigerators › LG refrigerator water dispenser stays on for 5 minutes. 0 Vote Up Vote Down JASON C DEAN asked 4 years ago When I plug the fridge in the water dispenser stays on for 5 minutes then shuts off, then the ice or water dispenser will not work. I have changed the main control board and the display board. LG lmx25984st/00 Email Name Website Comment Current ye@r * Leave this field empty Your Answer Your Email Your Name Accepted file types: txt, jpg, pdf Add another file