Question about Aprilaire 600 Humidifier

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Solenoid on Aprilaire 600

Last year I replaced a solenoid on my father's humidifier. Now both solenoids indicate they are not working (power and water-no flow). Is he doing something to the controls to burn out the solenoids?

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  • peters15612 Jan 13, 2009

    Since my question I have found both Solenoids clogged (only one year).

  • Stephen Evans May 11, 2010

    Are you sure the solenoids are bad and not the Humidistat



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Solenoid valves dont just burn up just like that you have a recurring restriction due to bad water.Check the saddle valve at the water heater first then check for postive water flow at inlet to the solenoid valve,if you have water flow the valve is clogged with sediment.

Posted on Jan 13, 2009


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HVAC Teacher

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