Question about Aprilaire 550 Humidifier
The power is on the furance, I set the humidifer to the approariate setting and I hear the click of the relay, but no water is feeding into the unit?
what can I do?
Sounds to me like the solenoid valve is your problem and it is likely stuck due to sediment. I beleive Aprilaire has superceeded all of their old valves to the part number 4040 (used on all models of aprilaire humidifiers) - anyone who services these units regularly likely has one in stock usually $60 - 100.
Posted on Nov 21, 2007
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