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Aprilaire 560 constantly drains water

This is our second winter in a home with an Aprilaire 560 whole house humidifier. I noticed several days ago the unit has started to drain water constantly, even when the humidistat is turned to OFF. I do not believe it has done this until now. What would cause the unit to suddenly begin to continuously drain water even when turned off?

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Check to see if you have 24 volts between to 2 yellow wires coming out of the water solenoid. if you have 24v, then it is still getting energized to run. if it does not have 24v and the water is still running, the solenoid is stuck open. most likely from water deposits. sometimes you can take the solenoid apart and clean it, but probably better off just getting a new solenoid.

Posted on Feb 07, 2009

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Aprillaire 760 leaks from the bottom left of the case. panel is new, drain is clear, all vents open in the house, the panel cage is free from excessive scale. Any ideas?


Here is a link to your humidifier http://www.iaqsource.com/article.php/my-aprilaire-humidifier-is-leaking-what-to-do-about-it./?id=35

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Aprilaire 560 will only click and flow water when turned to "test" does not work in any other settings?


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Dec 03, 2009 | Aprilaire 700 Humidifier

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Aprilaire model 560 pan keeps filling up with water - what adjustments do I need to do?


Here's a link to the manual for your Aprilaire model 560 humidifier you can download and print for free.

According to Aprilaire, it is normal for there to be excess water going into the drain pan. However, the drain pan should have a drain line connected to it so the contaminents from the humidifier can be flushed down a drain and away from the unit. (see page 2 Principle of Operation).

They further state that the water valve should only be either fully on or fully shut off and do not attempt to regulate water flow with the inlet supply valve.

http://www.aprilaire.com/themes/aa/en/manuals/Humidifiers_Owners_Manual.pdf

I would give the unit a good cleaning of the pan, locate the drain connection and attach a drain line to your unit as is required for proper operation and function/

Hope you find this Very Helpful - Best regards!

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What should my humidifier be set at for the winter?


Hi, Jennifer:

I'm no expert, but those who are seem to agree that the first thing to check is your evaporator panel. Aprilaire recommends replacing it annually--so if you haven't replaced it recently, that would be the first step to take. Next, check the power supply to your Aprilaire unit. Turn the humidistat to 0%, and then turn it slowly back toward 35% until you hear a click at the unit. If you don't hear a click, you'll want to check that the unit is in fact getting electric power (you may want to get an electrician or furnace tech to do this). If you do hear the click, the next thing to check is whether you have sufficient water flow to your Aprilaire unit. On mine, I had to adjust my water supply saddle valve, as well as the inline valve on the discharge side of the solenoid (see prior post from this morning)--and this seemed to clear the lines and restore water flow. Once you achieve proper water flow, you will probably want to set your humidistat at 35% for winter temps of around 20 degrees F--but be sure to adjust it downward for colder weather. Comments, anyone?

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Aprilaire 600 Humidifier


J-

I had this problem several years ago. In order for the water to flow, the outside temperature sending unit must indicate to the controller that it is less than 60F. If not, the unit will not operate outside of test mode. Check the temp outside where your sending unit is (could the sun be heating that side of the house?) and ensure that the circuit to the sending unit is working. I had a bad wire splice inside a wire nut stopping the circuit. Took me a long while to figure it out.

If the outside temp and your sending unit circuit is ok, I wish you luck on your troubleshooting.

adx_98

Nov 10, 2008 | Aprilaire 600 Humidifier

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