Poor Incoming Water Quality Last updated Save as PDF Possible Cause What to Do Refrigerator not used for an extended period Flush the water filtration system. Dispense and discard 1 gal (4L) of water, this will ensure the water tank is refilled with fresh water. Still Need Help? You may need assistance from one of our qualified service technicians. Click on the button below to schedule a visit. BOOK A SERVICE or Contact Us