First post, and I want to say thanks in advance. In searching the forums I've already learned a lot and I'm hoping you can help with a problem.

Whirlpool Cabrio WTW5700XW0, 3 years old, never been serviced, never had a problem before now.

I noticed my washer was using warm water on every cycle, so I did some tests today with a digital thermometer.

Set my washer on Soak and let it fill. Temps were 122 degrees on every setting (Tap Cold, Cold, Cool, Warm, Hot).

So I shut off the hot water at the hose-bib and tried to run a Soak cycle using Tap Cold but it wouldn't fill. It just hummed until I turned on the hot water at the hose-bib and it started filling immediately.

Disconnected the cold water hose and checked the inlet screen but it was clear. Pointed hose into drum, turned on cold water hose-bib and pressure is fine.

What do I need to trouble-shoot next?

Thanks in advance.
- Dave