LG top loading washer not always filling with correct wash water temp

I have a Maytag that had that problem. Mine has a plastic tube inside of the machine that connects to a sensor. As the water level rises, some of it goes into this tube creating air pressure on a sensor that signals the machine that the water is at the selected level. The bottom of the tube had come loose and just needed to be put back onto the fitting. I accessed this tube by lifting the top of the machine, and it is in the back. Very easy to get at. I hope this works for you.

Check the filters on both sides of the inlet water line. Let me know with your results for further assistance if will be needed. Good luck!

the system which controls water level is an air chamber with a small diameter pipe which goes to a pressure stat. when the correct level is reached, the pressure in the air chamber switches the pressure stat and cuts the water off. the things to look for are: gunge in the air chamber split in the pipe. faulty pressure stat to test, get a similiar length of small diameter pipe and connect it to the pressure stat instead. with the machine filling, blow gently into the pipe and see if the water intake cuts off

OK - I have a solution to my problem with this washing machine. Nothing would work except for one of the spin cycles. I thought it was the main switch - the cycle selection and start switch - but I was wrong. The service tech replaced the switch behind the fabric softener. It's the switch that controls the water levels. Part # W10292584. Our government is forcing the manufacturers to put controls on the washing machine to save water. It's a bad idea and is causing lots of problems. Tech says he's replacing them on a regular basis. Less than $100 if you do it yourself. Hope this helps.

Cold water pipe had become frozen. FYI this model of washer has a nice feature whereas you can test each component i.e. valves, by setting the timer and reading the LED's on the front panel. Instructions are in the schematic.