KitchenAid Ice and Water Dispense Not Working?

I have had a side-by-side KitchenAid refrigerator model KSCS25FTMS02 for 6 years, suddenly the dispenser light went off, from there I don't have water, and the ice maker stop making ice. The inside freezer light is on normally, the ice making sensor works as I did some tests. I also tested the door switch part# 12466114 by taking it out and performing connectivity check and the switch seems to work as expected.

I checked the connection at the door hinge and they are good, nothing loose. The freezer and fridge work just fine, so I am stumped. What could be wrong and where should I start checking further?
Thanks.

By Peter