Question about AutoFlo 250 Humidifier
I have a Autoflo Humidifier model 250 on my 20 year old furnace. For years I have had two problems: The water flow comes out so fast it overflows onto the floor - I have tried to regulate this over the years with the saddle valve (I read in a installation manual that this is not appropriate). Second, when the selenoid valve closes, it makes a loud CLUNK that resonates through the house. Probably due to the high water volume going through and what seems to be a quick shut off by the selenoid.
Can you help me? The manual instructions say the valve has a metering orifice in the valve - would I see this if I took it apart? Do they make a selenoid valve that you can adjust the water flow or put in a smaller orifice? For the loud knock, do they make a valve that closes slowly instead of rapidly? (Although I'm thinking if I can lower the water flow the knock may go away) .
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Posted on Jan 02, 2017
Try to clear the small pinhole in the fitting leading into the selenoid. Sometimes this gets blocked with dirt or sand.
Posted on Dec 26, 2008
SOURCE: What is the saddle valve?
Your humidifier will have either a copper or plastic tubing attached to it. This tubing is the water tubing. If you follow that line to where it "taps" into a water line (near the water heater or a water line under your house), there should be a water shut-off valve. The water shut-off valve could be any type of valve but is normally a saddle valve. You could skip the step of shutting off this valve; however, it is good practice to shut the valve off for two reasons: 1. in the event of a water leak, you will be able to easily locate the valve to shut off the water. 2. if the valve is not "excercised" from time to time, the seals will dry rot and the valve will not be capable of doing it's job when the need arises.
Here is a video showing you how to trace your water line to your saddle valve. There is additional information on the video that you might find helpful as well.
Posted on May 07, 2010
Hello, the motor itself wont cause the unit to leak water, the float valve on the unit is what adjusts how much water is coming into the humidifier. If the float valve is not adjusted properly or broken it will cause to much water to enter the humidifierand therefrore overflow. Replace the motor and chexk the float valve to enure it is adjusted properly and if it is stuck or broken replace.
Posted on Jun 15, 2011
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