Aprilaire 600: solenoid doesn't open

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Old 10-24-16, 06:07 PM
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Aprilaire 600: solenoid doesn't open

I am having problems with my Aprilaire 600 - solenoid does not open; the Automatic Humidity Control only has a "black mark" in the display...I've tried reset etc..didn't work...It worked the previous Winter and I'm at a loss if it's the Solenoid or Auto.Digital Humidifier Control. Thanks, Tom
 
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Old 10-24-16, 09:11 PM
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Welcome to the forums.

Do you have a test meter ? Even a $10-$15 basic would be fine.
You need to check for 24vac on your automatic humidistat R and C terminals.
 
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Old 10-25-16, 04:18 AM
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Thank you PJAX; I am sure my Son has a tester and I'll ask him to verify the the terminals. Once again, Thanks, Tom 16
 
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