Hi, I recently installed a Honeywell whole house humidifier. It does everything correctly but does not add enough humidity to the air even with the control turned to max. Water passes through correctly and out of the drain while the furnace is on. I thought that I attached the bypass hot air to close to a direction change in the duct work and did not have enough air flow so I moved it and now if feels like I'm getting good air pressure from the hot side and it draws air into the cold. I checked the humidifier pad and it seems OK. It is easy to see light through it. Let me know if you have any thoughts. Thanks Gene
The humidistat should be mounted on the return duct,higher than the humidifier (if mounted on the return), or higher than the by-pass duct. If it mounted lower it will sense the humidity right out of the unit instead of the house which will turn the humistat off due to satisified humidity level. Also The flo thru humidifiers will have water running out the drain tube. These humidifiers can go through 8 and up gallons per day.
-   My April Air whole house humidifier will not give me humidy above 22%.It was installed professionally less than 1 yr.ago.Water valve is open(left loosey)all lights on unit indicate normal operation.Should I see water in the drain tube from the humidifier?The clear tube is always dry.I was to expect humidity of 40-49%.-   Guest
Dec 07, 2008
-   I have the same problem as all above have explained with two furnaces and two humidifiers. Both serviced ares are dry - dry - dry. Professionals that have installed these units are of no help. Are there any solutions?
-   Guest
Mar 30, 2008
-   Ditto, I have the same problem. Everything seems to be working as designed. I even feel the humid air when I open the humidifier unit, but when I go through the house, the air is still dry heat; humidity gauge doesn't go above 22%. Humidifier is installed on the supply (hot air) side and the duct work is connected to the cold air return side. I made sure the humidistat was installed at the required 6-8 inches above the duct work and humidifier. I don't get it, what's wrong????? Can someone help?-   Rozcoe
Mar 04, 2008
-   I also have the same problem with the same type of Honeywell humidifier. A friend of mine is in the same boat. I'm not sure what the issue is... It will raise the humidity to about 25%-28% and that's it.-   JPT5000
Feb 26, 2008
-   I have the same problem... Water runs through it, and all seems to be working. At the furnace I installed the humidistat in the cold air side just below the humidifier on the furnace. humidity seems to be going up at this point on the cold air side of the furnace. But when I measure the living level humidity I can't get it above 26% after installing this puppy....
I'm still perplexed??????????????/ -   gainesma
Try the following test, ( I will resume this is a flow through humidifier)
Spray water directly oin the filter make sure it is saturated. Some water should leak from the bottom. After 10 min measure the Humidity to see if this helped. If there is a higher level of humidity the pbm is that not enough water is saturating the filter. Check the level of the filter & water feed nozzle.
Option 2 is to connect the water feed tube to a Hot water source.
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I have a Honeywell House humidifier HE 225A-1006. As soon as the heat turns on water begins flowing through the filter even though I have the humidistat turned to off. If I turn the humidtsta toabout 55% I hear a click and if I bring the humidistat to off it does not matter the water continues to flow. If heat is truned off the water stops flowing. Could this be a bad solenoid valve. Part # 32001639-002. Turning the heat on immediately causes the water to start flowing again. Its as if the solenoid is stuck in the open position and allows water to flow as soon as the heat is truned on. It worked good fro 2 years until I started it up this season.
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I installed the HE220A humidifier in October, with the humidistat and flow switch. As soon as the outdoor temperatures dropped I had very heavy sweating on every window in the house, enough to puddle water on the sills and woodwork and cause mold to grow. For weeks I played around with the humidistat setting without any change in the amount of sweating. I also reduced the water flow to the unit so there is barely any water coming down the drain. This also resulted in no change. Finally I unplugged the humidifier and within one day my windows were dry. I wonder if the humidistat is faulty. Is there a way for me to test it? Is there any other way to reduce the capacity of the unit besides reducing the flow of water to it?
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