We narrowed the issue to water filter head assembly. Searched the AppliancePartsPros.com site for the repair video and found it very useful. With the help of a customer support lady. I found the right part and it was delivered in 2-3 days. The repair was very easy with basic tools. Works fine. This is the second time I have repaired a major kitchen appliance with the help of AppliancePartsPros.com. successfully. Thanks for the great how-to videos and customer service.