I have a Frigidaire FGHB2866PF4 and the water dispenser has stopped working. Ice is still working and the main water valve is working. I have confirmed the water line to the dispenser is NOT frozen by diverting the return line from the filter to the water dispenser on the back of the fridge and water is dispensed when the paddle is depressed. I have confirmed the is power to the yellow (water dispenser valve) when the paddle is pressed. Can someone confirm what I think I know, that the water valve is the problem?