Speedqueen washeer net getting water at all ,I have changed mixing valve still same,what I have to do next?

Yes the mixing valves do wear and give out........I had to put a micron filter in the input line to the hot water tank and solved the promlem for around 8 tears now. knock on wood....Hope this helps.

The only way to determine that the water valve is getting a signal from the controller is to measure the voltage at the inlet valve with a multimeter it should read 230 volts ac also check that the door is locked properly as the machine wont start until the door closed signal is present at the programmer, it may click closed but still not complete the circuit, Be careful with live mains voltage du not attempt this if you are not competent to do so eric

Check screen to see if they are blocked. Both ends of the water hoses.