Washer only has cold water. Hot water is good to machine but only cold water enters machine on warm cycle, no water ar all on hot cycle.

Hello there
The Water System temperature sensor is normally what is wrong with these units with this condition that you are experiencing
The water system consists of the hot and cold water inlet valves, a water temperature sensor, a water
flowmeter and control and the dispenser distribution system along with a traditional pressure switch.
Water Inlet Valves -
The hot and cold water inlet valves are located at the back of the washer. These valves receive a control
signal from the Central Control Unit to manage the temperature of incoming water. The temperatures
are determined by the specific wash cycle selected and a temperature sensor located in the wash tub.
To improve cleaning of heavily soiled clothing and to provide a sanitizing feature, the water temperature
can be increased through the use of a heating element located in the bottom of the tub