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5 year old geothermal system water wil not shut off after heating cycle

thedealmakinmanthedealmakinman Posts: 1Member
in Geothermal
I just discovered the water runs continuously after a heat cycle. if I turn geo off the water will turn off normally. when turned back on the water will ramp up normally in about 1 minute, then the geo fires up about 4 minutes later. BUT, when cycle is finished the geo shuts down normal, and the water continues to flow. My light bill last month was $400! I suspect the taco valve on the incoming water supply. Any suggestions?
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Comments

  • GWGW Posts: 3,392Member
    Yes seems like your Taco won't close, pull off the top-most wire and make sure it's not a control issue.

    Gary
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    www.wilsonph.com
    [email protected]
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  • A.J.A.J. Posts: 257Member
    Sound like a control issue if the valve closes after you turn the power off. Try taking the wires off the valve and see if the valve closes . If it does you must be getting voltage from the board in the heat pump and the valve is good. Remember that the TACO valves are a slow closing type of valve so it will take awhile .
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  • Gabriel@HBX[email protected] Posts: 9Member
    If you need assistance with a control I would be happy to help. HBX does offer a geothermal control and a zone module which can control when your equipment is on or off and for how long.
    Comfort
    Control
    Innovation
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