Aprilaire 550 Humidifier "water heater blower hums turn" Questions

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Question about Aprilaire Humidifiers

1 Answer

...heater control board. 2. If it has worked before, maybe the saddle valve is plugged. Turn the "T" handle all the way clockwise, then all the way out CCW. You can hear the water start flowing. Loosen ...

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Question about Aprilaire Humidifiers

3 Answers

...heater control board. 2. If it has worked before, maybe the saddle valve is plugged. Turn the "T" handle all the way clockwise, then all the way out CCW. You can hear the water start flowing. Loosen ...

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