Water dispenser stopped working a few months ago, then last week the ice maker quit. If I disconnect the water from the wall, it will make the buzzing sound opening up the valve, but if the water is on and pressurized, it won’t work. If I relieve the pressure then turn it on while the switch is being pressed - water will flow through the whole system. I read on the back that there is a limit to the inlet pressure - could that be causing it, or need to replace the valve/switch assembly? (Model #1065752791, part on the valve assembly 2182106). Thanks…