Why is my warm water is cold? The hot is hot and cold is cold but warm is cold.
There is too much pressure on the cold feed, reduce the pressure on the cold by partly closing off the tap on the cold.
Or ensure the hot feed is fully open and not blocked, check if there are filters inline - remove the feed pipes at the washer end and look into the inlet valves - clear if blocked.
The inlet valve is common to hot and cold water with only a small pipe to fill the machine, the cold water is being forced back up the hot water pipe due to the pressure you can feel the pipe cool down after running hot then go to warm, if hot water is flowing the pipe will stay hot, if not then cold is going up the hot pipe.
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