Question about Aprilaire 550 Humidifier
Aprilaire model 550 with manual controller. Water continues to flow to humidifier even furnance blower is not running. I can stop it by turn humidity control down, then water stops flowing even furnance is on.
tried power off furnance, then no water flow at all (of cause)
What needs to be fixed?? soleniod problem? bad electric wiring??
This sounds like, the 550 transformer is not connected to the blower motor power connection (in parallel)
Posted on Mar 04, 2009
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Posted on Jan 02, 2017
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