Question about Aprilaire 550 Humidifier
I have an Aprilaire 550 hooked up to my furnace. I have lived in the home for 3 yrs but never used it. I thought I would give it a try. I cleaned the unit out and replaced the water pad inside. I turned the humidity up to about 25% and I heard the water start run into the unit. The problem is that the unit runs constantly, even when the furnace is not running. I don't believe that it should be running when the furnace is not on. What do you believe the problem is?
In order for the humidifier to come on with the heater there has to be a temperature sense curuit to turn it on/off at a certain temp, the humidity curcuit on the unit will turn it off at set %
Posted on Jan 31, 2010
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Posted on Jan 02, 2017
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