This seems like a very helpful forum. I was going to post on an existing thread, but since they are several months or years old, it seemed better to start a new one. I've read through a lot of the existing posts and have done a bunch of troubleshooting. In the end, after making sure the water supply, solenoid valve and humidifier fan worked, I found there is a problem with the power. I noticed the power outlet controlled by the furnace where the humidifier is plugged in doesn't have any power, although the outlet for the electronic air cleaner in the same box works. Temporarily, I used a different outlet. When I connected the two brown wires, the humidifier began to work just fine. I tested the wires from the humidistat, and there is no current even when the furnace is on and the humidstat is set for cold weather. Is it some issue with a current sensing relay or something else? Thank you very much in advance!
Aprilaire 760: No power from humidistat or furnace controlled outlet
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