Well, I ran the diagnostic again and when I get to t02 I have a error code 30 for the drain pump. I hold start and it clears the code. I get t06 Pressure Switch Test and I go through all three stages. It begins with "E" for empty, then it fills to "F" for Foam level. I press start again to fill to Main level "nl". It starts to fill and after 3 or so minutes the drain pump starts to make an awful sound like grinding gears. I does this for about 10 minutes and I have to stop it. It never reaches "OF" for "pumps out"and then "E" for empty tub. However, when I press the power button to exit t t06, the pumps runs quietly without the grinding sound. When I go to the next test t07, Thermistor/Heater Test, the manual tells me that "Main level pressure switch must work".The washing machine displays 90 degrees, and begins to heat the water. After a few minutes, it drops to 75 degrees then 77 and ends at 79 degrees after 5 minutes. I don't know what that means but when I go to the next test, it pumps the water out without any problems. I finish the rest of the test and everything works fine except when I do t13 the EOL Test. It fills the tub successfully but when it is filling , the grinding sound begins again. I turn it off and the drain pump pumps out the water quietly and quickly like it is suppose to. Now I test the pressure switch and with my multimeter and it I believe it works correctly. It has a little resistance when there is no pressure and infinite when there is pressure. So what do you think is wrong?
Switch opens when I blow into into is between 11 ,12 and 22,21 terminal.