KIB electric water heater switch light problem

[MIKENLINDA]

The light on the electric function for our water heater started blinking out then back on a few seconds later. I know it's a remote switch, so I don't want it turning the element off and on sporadically, so we stopped using that function. We changed out the anode rod and electric element and the water gets hot, but I'm hesitant to use the electric function, as the light keeps going on and off. Anyone else had this problem?