Lindsay A Atlanta , GA August 01, 2014 Appliance: Whirlpool Refrigerator GS5SHAXSQ00 Whirlpool Refrigerator Gs5shaxsq00: The water filter cap was broken and would not attach o the filter to extrac it for replacement. How to replace Water Filter Cap. I removed the old cap and installed the new one. It works perfectly now. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes