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Heat Link Actuator stuck on open

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I have one of the actuators on the manifold for my floor heating stuck on open. The zone with the problem has two circuits but only one of them has the "stuck" problem. I don't think this is a wiring issue as I only noticed it recently. Do I need to replace the actuator or is there is it possible to remove it for cleaning and checking the wiring, etc.?
Hoefhoef.

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  • HVACNUT
    HVACNUT Member Posts: 5,887
    edited September 2017
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    Considering the thermostat is good, check to make sure the actuator is seated property, depressing the pin. If it seems like it's seated properly, swap it out with the other actuator. If it works, it's a bad actuator. If not, it's a bad valve.