The GE washer water temperature switch is in charge of controlling what temperature water will enter your washer.

The typical switch has three settings, hot, cold and warm water. The switch will activate two solenoids in the water mixing valve.


To get hot water the switch will send electricity to the hot water solenoid and to get cold water the switch will send electricity to the cold water solenoid.

When you select warm water, the switch sends electricity to the two solenoids allowing hot and cold water to mix and becoming warm.

Some GE washer water temperature switches may use more that three settings for different temperatures.
 

If the problem with your washer is that it won't take in cold or hot water and the water mixing valve is ok, check the water temperature switch.
 

You will need to use your wiring schematic to see what contacts should be close during each selection on the switch.