I noticed that we have no hot water and there is a contant flow of water exiting from a PVC pipe coming from the humidifier into the sump pit. I tried adjusting the setting on the humidistat and even turned it to off and the water just keeps flowing. It did stop when I turned the saddle valve all the way off for a little while, but then I won't get any humidity and it is very dry. It is Feb. in Chicago and it's been around 20 degrees and going to be hitting 30. I had the humidity set at 25, and just changed it to 35. I do not want to shut it off, but I do not want the water, hot water heater and sump pump running constantly and I do not want to always be out of hot water.
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Re: Aprilaire 440 won't stop running
Disconnect the two low voltage wirings going into the solenoid valve. If the water does not stop running after a few minutes the valve is bad. When you check your local area to price a new valve. Also get a price for a new humidifier. You will be surprised to find that a whole new unit isn't that much more. Or should I say that you will find that the replacement parts are overpriced.
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One way of removing the gunk is to disconnect the tubing from the humidifier and use a flexible and thin rod that will fit in the tubing and try to dislodge it, or you can try using a shop vac and see if the suction pressure will remove it. If the tubing is really clogged then sometimes it's better to just replace the vinyl tubing with pvc pipe and drain it to the floor drain, I always prever pvc pipe over vinyl tubing when it comes to drain lines for humidifiers.
Yes a new valve seems in order. and yes having the valve on the cold side would create less build up in the filter pad so long as your water dose not come in at 37 degrees. but, I think you have it right.
If the water continues runs nonstop even when the heater is turned off, you might have either a bad solenoid valve or a bad humidistat. Simply disconnect one of the two low voltage wires going into the unit. If the water turns off then your problem is most likely your humidistat or the low voltage wiring. If the water continues to run even when the low voltage is disconnected you have a defective solenoid valve.
1/4" flexible copper pipe. Tap into your cold water line using the included saddle valve (pierces the pipe), attach the 1/4" flexible copper pipe to the saddle valve on the cold water pipe and the solenoid valve on humidifier unit using the included compression fittings. Tada!
Turn that pin to the left and that will open the valve to allow water to flow through it. If it starts to leak the all you need to do is tighten the nut that were the water is coming out with a wrench, be carefull it wont take much to tighten.
check list 1.check the clamp on the pipe where water line connects is the hole clogged (water turned off)wont take long 2.Is water flowing all the way to resevoir after turnnig water on loosen line at reservoir 3.jiggle float water should enter the reservoir inlet to float valevel somestime cake up,clean float off 4.Remove pump cap clean impeller and standpipe 5.clean reservoir,and close everything up
Usually the hole in the pipe is clogged up in step 1 or the float is sticking if there is no evidence of water in the reservoir