New Moen 2570 (m-pact posi-temp) acting funny

Discussion in 'General Plumbing Help' started by Matt Bowers, Jul 17, 2019.

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  1. Jul 17, 2019 #1

    Matt Bowers

    Matt Bowers

    Matt Bowers

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    Hi all - we just finished a great bathroom upgrade (a leak forced our hand). We have a new Moen 2570 valve for our tub/shower combo. But the temperature regulation is super wonky.

    It's freezing until you turn it all the way over to the hottest setting, then it's hotter than comfortable until you turn it almost all the way back to cold. After that it's doable, but colder than we'd prefer. It's like the heat only has 3 options and there isn't any scale or in between spots.

    Any ideas? Would appreciate it so much! Thanks, Matt
     
  2. Jul 18, 2019 #2

    RenewDave

    RenewDave

    RenewDave

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    Are the hot and cold lines plumbed correctly? You may need to flip that cartridge 180 and try again. The handle should be at 6 o’clock and turn ccw to 9 o’clock
     
  3. Jul 18, 2019 #3

    Matt Bowers

    Matt Bowers

    Matt Bowers

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    Thanks for the reply, Dave. I'm 99.9% sure they're plumbed correctly. We had a licensed plumber install the valve. The handle starts at 6 (cold) and goes counter clockwise to 9. It makes a distinct noise when it goes past about 10 in either direction like it's blocking or unblocking the water from cold (that's the point when it goes from luke-warm to full-hot).

    Another thought - is it possible it has something to do with the stop valves on the sides? For the life of me, I can't find any documentation about where those should be set.
    [​IMG]
     
  4. Jul 18, 2019 #4

    Matt Bowers

    Matt Bowers

    Matt Bowers

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    jeffmattero76 and Rossando like this.

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