How Are Water Temp's Determined For A Maytag Washing Machine

This is similar to a question I posted a while back.
However, most of the respondents mentioned that I needed
the actual Model be able to answer correctly.
Should have of course mentioned it at that time, but neglected
to do so. Sorry.
The Model No. is: MAH 5500BWW
It's a Maytag Neptune front loader washing machine that was
purchased in 2001.
Not sure if anything has changed regarding the following question
since then or not.
Am very interested in learning how the water temperatures are derived.
e.g., for "warm," is there an actual thermostat, or are the inlet cold and
hot streams (each) merely timed for a predermined on period ?
Or,... ?
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