Refrigerator Ice Maker Overflowing
Cause 1 – Water Inlet Valve
The water inlet valve needs at least 20 psi in order to turn off correctly. The valve will not close once power is turned off if water pressure is too low. So, the valve will leak water into the ice maker, causing it to overflow. Make sure that the water pressure is at least 20 psi. If the water pressure is great enough, then the water inlet valve might be the culprit. The valve may not be turning off fully or it may remain open, which will cause water to leak through it. If the ice maker still overflows, but water pressure is great enough, then you must replace the water inlet valve.
Cause 2 – Low Water Pressure from House Supply
The water inlet valve supplies water to the ice and water dispensers in the refrigerator. The valve needs a minimum of 20 psi in order to function well. The valve may not close completely when the power is turned off if the water pressure is too low. So, the valve will leak water into the ice maker, which will cause the icemaker to overflow. Test the pressure of the water flow in order to make sure that it is at least 20 psi.
Cause 3 – Ice Maker Assembly
An individual component of the ice maker assembly could be damaged. Because many of the components ice maker are not sold individually, it is possible that you will need to replace the whole ice maker assembly.