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Riello selenoid coil

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bob_17
bob_17 Member Posts: 14
in Oil Heating
I read that a coil should read 1350 ohms (term 1 and 2 with the wires disconnected). I changed a coil reading 700 ohms thinking it is faulty, but the new one only read 825 ohms. What am I doing wrong?

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  • World Plumber
    World Plumber Member Posts: 389
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    meter

    Has your meter been calibrated? Is there corrosion or something causing resistance between the terminals?  What do you get between 2 & 8? The chart says 1215 to 1485 ohms.  Check it with another meter it is possible you have 2 bad coils.
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