Running water at fountain center at approx. 15min. intervals. Shut I/M and problem stops

Has anyone looked at the lines from the water valve? I had a similar problem with a Kenmore (LG built) where the owner had tried to repair the lines and switched them.I replaced the lines and got a call back. My partner noticed water on the floor from dispenser but no water in IM. I went back and switched the lines. working okay now.I also had a had a main board do that Long ago.