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My shower only stays hot for a minute and then goes cold even though the hot water works everywhere else. I have a hot and cold tap and a third one to direct to shower or tub.

This seems to have started happening not long after I changed one of them stems in the shower, but not immediately after. Even after the hot water dies in the shower, there is hot water in the sink in the same bathroom and everywhere else in the house. It's like the hot just disappears. I turn the cold all the way off and cold water continues to come out.

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I would take a look at the stem replacement task. Maybe something is clogging the hot water flow, perhaps a damaged washer or debris

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

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SOURCE: I jhave in my showers

moen-3520-rw-23107-6686.jpg
As you look at your valve on the right you will see a large screw fitting.inside this fitting is a temp/ pressure balance spool. it has failed for some reason and needs to be replaced. On both sides of the valve are 2 smaller screws. these are the water shut off valves. turn off the water and remove the larger screw fitting. remove spool and replace. Hope this helps.

Posted on Dec 21, 2010

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