I did some research on the internet and discovered the water filter housing could be the cause..
I watched a video on the replacement of the part and contacted appliance Parts Pros. and
ordered a new housing. As promised the part was delivered within 2 days. Ordered on Sunday and received on Tuesday. I installed the part within 30 minutes following the video instruction for
the part and the refrigerator is operating as good as new.
Thanks to Appliance Parts Pros for their excellent service and helpful videos.