Hot water coming out of cold water tap and shower

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In my master bathroom I’ve been getting hot water coming out of the cold faucet and dangerously hot water out of my shower. The hot water in the faucet eventually runs out and the cold returns after about a minute. Unfortunately the shower is more problematic. It is impossible to get just warm water that is more than a trickle. Once you turn up the the pressure the temperature gets extremely hot. We’ve tried letting it run out and then trying again but then it goes just cold. If we want to try again we might be able to find a middle ground after wasting all that time and water. I checked the hot water heater and the temperature is at about 118. Our shower and sink faucet are Moen. The shower is a positemp.

Can you help me pinpoint the problem?

 

2 weeks 93 views

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