Aprilaire 600 solenoid

Old 02-25-16, 05:37 PM
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Aprilaire 600 solenoid

I have 24 a/c volts across the wires that go to the solenoid but it will not open. I tried two new solenoids. I thought the new solenoid I bought online was faulty and they sent me another. I cannot imagine two new solenoids being faulty. They are 30-35 ohms measured across the leads.
Could my problem be not getting enough amps. I measured 25-27 a/c volts with a Fluke meter.
I checked the water supply as ok. Can anyone help? I need to get this working again.
Old 02-25-16, 05:42 PM
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Welcome to the forums.

Did you measure the voltage with the solenoid connected to the wiring ?

A typical problem is a defective humidistat.

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