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Taco VT2218 OverVoltage

BenW0jBenW0j Posts: 2Member
edited January 7 in Controls
Hi Everyone,

I currently have my TV2218 circulator hooked up to a ZVC406 and recently I've been getting a AC input overvoltage error on my circulator. What should I be looking at that may be causing this error?


  • ZmanZman Posts: 5,518Member
    edited January 8
    I think the first step would be to check your voltage. While you are at it, make sure the neutral is good, it should have continuity to ground and should not show voltage when isolated. If your voltage and neutral are normal, a call to tech support would be in order.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • Joe MattielloJoe Mattiello Posts: 587Member
    The VT2218 is a great pump. Contact Taco Tech Support at 401-261-4890 for help with that product. Not sure how you have it connected to ZVC control
    Joe Mattiello
    N. E. Regional Manger, Commercial Products
    Taco Comfort Solutions
  • SteveSanSteveSan Posts: 45Member
    As Zman said, check your incoming voltage. You might be experiencing voltage spikes causing the over voltage error code. Also check the connection going to the pump. Any questions please call into Taco Tech Support @ 401-942-8000
  • hot_rodhot_rod Posts: 12,540Member
    Do you have a mod con boiler? Most will alert you to an out of tolerance voltage issue. It would help run down if it is a supply issue.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    The magic is in hydronics, and hydronics is in me
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