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Thread: 3 port valve problem

  1. #1
    Automated Home Lurker
    Join Date
    Sep 2007
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    Default 3 port valve problem

    My three port valve (Landis & Staefa MA-V322C) gets very hot and buzzes. It seems to be stuck in the HW position. If I take the head off put into manual mid-position, I seem to get both HW and CW. Can I assume the actuator motor has expired and just needs replacing or should I do more checks? I am reluctant to just replace and hope.

  2. #2
    Moderator sunbeam's Avatar
    Join Date
    Feb 2006
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    lancs
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    Default

    Yes, that would be my guess,

    I'd just change the motor.

  3. #3
    Automated Home Lurker
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    Sep 2007
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    Default

    Thank you. It does seem to be the motor. Since posting I have tried removing the actuator and replacing it in all three different valve positions (W - M - H) it just buzzes away whatever I try to tell it to do from the controller. I'll replace it and see.

  4. #4
    Automated Home Lurker
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    Sep 2007
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    Default fixed

    I've replaced valve head and it now works fine.

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