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Boiler will not shut off

gary_6
gary_6 Member Posts: 60
in THE MAIN WALL
I replaced the thermostate and relay but boiler continues to keep running. What do you suggest?

Comments

  • kevin coppinger_4
    kevin coppinger_4 Member Posts: 2,124
    disconnect the t-stat...

    and see if you have a pinched wire...is it over heating the house/zone ?kpc
  • Unknown
    Unknown
    Is this a gas boiler?

    If it is the gas valve could be stuck open. Remove the wires from the valve if it still will not shut off the valve is stuck open mechanically. The valve needs to be replaced. Other than that you may have some wires shorted together some where in the system.
  • STEVE_22
    STEVE_22 Member Posts: 2
    service

    Shut off the power.And CALL a heating contractor.... If your not a tradesman (ie) a professoional heating contractor you should not be replacing components..
    steve
  • Unknown
    Unknown
    Shutting of power

    will not stop a passing gas valve from staying open. It is stuck mechanically. If anything shut off the gas.
  • STEVE_22
    STEVE_22 Member Posts: 2
    relay

    he may have miswired his relay
  • Don Dada_2
    Don Dada_2 Member Posts: 7
    How about

    A bad zone valve, maybe he doesnt mean the burners wont shut off. Sounds like a bad z.v..Don
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