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I have an American Standard Humidifier model #AHUMD300A, installed this fall. The amount of water that it drains seems excessive. Every few minutes it releases what sounds like a lot -- how do I know if it is wasting water?

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The amount of water released into the heating system, depends on what percentage of humidity the Humistat (looks like a thermostat) is set on. Generally 40% is about average. If it's set to a higher percentage, the more water it will use. What you're probably hearing is the holding take filling with water. I doubt that you would hear the water vapor being released into the heating system. If you hiear the tank filling that often, turn the humidifier OFF. Turn the water supply line to the tank OFF, open the humidifier's tank top and check to see in the float valve inside is stuck or not rising completely. That could be the reason you hear the tank filling so often.

Hope this help you Troubleshoot and solve the problem. If it did, please be kind enough to rate my response to you. Thanks!

Posted on Mar 25, 2011

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I had the same problem.
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