Taco ZVC 406 EXP
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  1. #1
    Join Date
    Jun 2009
    Posts
    47

    Taco ZVC 406 EXP

    Hi all, Having an intermittent problem with Taco ZVC 406 EXP that has worked fine for about 7years now on occasion when there is a call for heat from either of the 2 zones there is no response from the control ie.no LEDs lite and no heat, any ideas? I don't believe the relays are replaceable without resoldering.

    Thanks. G

  2. #2
    Chris_Worthington's Avatar
    Chris_Worthington is offline Controls Committee & Global Moderator
    Join Date
    Jul 2007
    Location
    Mount Airy, MD
    Posts
    7,281
    Thread relocated to AOP

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