How can I disconnect the auto temp control on a whirlpool washer so my wife can wash with straight hot water?

You may have a leaking hot water electrovalve, replace it.

hook up hot hose and turn on the hot water and dont use hot water control it will not use no hot water ,but washer need to see the water pressure ,but will not use no hot unless you ask for it Sonny

This so called "energy saving" ...That's why they build in this nonsense. Some dumbo in some office somewhere just thought it up thinking that will save the energy. I fact ,that way I have to wash same stuff twice because water is not hot enough ...

Yes, this is normal. All newer washer have auto temp control fills. This is to meet energy saving requirements. The less hot water used the more energy saved. Most hot settings on washers give out basically lukewarm water. The detergent made today is made to work well with cooler temperature water, so things will still come out clean.

You must have water to both inlets. Even with cold/cold, Your washer will mix the water some. Detergent will not activate if your water is extremely cold as it comes straight from the ground.

Make sure the hoses are connected correctly to the water valve on the machine. The connections will be marked with an "H" and a "C".

Given they are correct, most current washing machines have and auto temp feature on the water fill. It allows even cold water settings to bring in some hot water to make sure the water temp is hot enough to efficiently disolve your laundry detergant. The preset temps are usually around 75* for cold, and 105* for warm. Hot water comes in at whatever temp your household water temp is.

sounds like your washer has an auto temp. control if so the washer mesures the temp of the water and put in the manufacture set temp for that setting this board could be bad alowing only cold water to come into the machine. you could also have low hot water pressure at the washer be sure the hot water is turned all the way on. you may want to check to make sure no trash is in the hot water side of the water valve there is a screen in there where the hose conects you can remove that screen and clean it im sure one of these solutions will help you

It sounds like you have the hot and cold water lines to the washer reversed.  Try turning off the tap for the hot water then setting the washer to just cold wash and then  hot washif you get nothing on the cold and cold water when set to hot they are probably reversed.  Typically if the auto-temp control is broken you will only get hot or cold coming out on any setting. 

hi try to just regulate the temp by turning down the water flow from your taps if more cold is coming in than hot turn cold water down a bit to your satisfaction thanks THE APPLIANCE DOC

is washer less than a year old? if so call reapir ..there was an issue with the temp controls on a small number of those machines they use an electronic control in what looks like a mechanical switch..if over a yr old could still be a temp switch but be sure hoses are connected correctly and on a rinse cycle the water does come in hot ..don't worry too much about wash cycles temp is controlled to to prset temps and is based on final water temp in tub after fill not incoming water temp