Question about Aprilaire 700 Humidifier
Last year my humidifier worked fine but when this winter season started I have found that my humidifier will not shut off. It used to only start a minute before the blower for the furnace started but now the fan on the blower runs constantly. If I turn the knob on the control it will stop running bu then when it restarts it will not shut off.
The humidifier should not turn on untill the furnace blower starts. Since the fan stays on. does the solenoid valve also stay on? If they both stay on you probably have a bad humidistat. If only the blower stays on then the circuit bourd in the humidifier is defective.
Posted on Mar 09, 2009
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Posted on Jan 02, 2017
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