continous water flowing all the time. ( if humidistat is turned on)
lennox funurnace, 4 to 5 years old, 2 speed blower, mid efficiency
when I turn on the humidistat, you hear the solenoid, click, water flows non stop, regardless if the furnance is on or not.
I installed a new 24v transformer, for direct voltage to the humidifer, installed a new solenoid
the furnance company unconnected the humidifer wiring from the circuit board of the furnance, as the humidifer was taking energy needed to run the furnance the correct lenght of time. house cold at times as the furnance did not stay on long enough.
the solenoid and two brass fitting, the longer of the 2 is pointing down.
I'm lost, any suggestions appreciated.
if the wiring is correct, could there be a short in that wiring ??
Theholts220 - Sounds like they needed to install a bit larger transformer . You can also buy a A 50 Sensing relay that attaches to the wires for your motor and when you turn on the furnace it will allow the power to go to the humidistat. Very strange though they do not use a lot of power. Check and make sure the wires are not pinched or touching metal somewhere.
TLuzzo - The humidistat seems to be working when you turn it down. The wires for the solenoid should be hooked up to your furnace circuit board. The instruction manual will tell you where. If you dont have a spot on your circut board the A 50 sensing reley is they way to go. They are inexpensive
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Hello, the humidifier should only be running when the furnaces blower motor is running, therefore it should only drain when the humidifier is on and not flow continuously. Usually the humidifier will keep draining water when the solenoid is stuck open and should be replaced with a new solenoid valve.
I have a HE220, HE 260 humidifier..by pass, flow thru. There is no water flow between the hot water tank and the humidifer. The water valve is on. Is there an inexpensive part I can replace myself first before calling a plumbing contractor?
turn the saddle valve in and back out. sometimes the small pin hole for the water gets plugged with something over the summer when the units aren't running and just turning the valve in and back out clears it out and allows the water to flow. check to see that you have water flow at the solenoid and if you do then it is probably the solenoid that is bad.
In order of probability:
1) (incorrect wiring) Make sure that humidistat is in SERIES wired with the furnace.
2) (shorted wires) Check that two wires to humidistat are not touching...use your glasses if you need them!
3) (bad humidistat) disconnect the humidistat and put an ohmmeter accoss the two terminals when it is turned on you should read 0 ohms, and when off it should read infinate ohms, if not pass both these tests, you need new humidistat.
That is it, there are no other possibilites!
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.
This type of humidifer is known as a flow through humidifer, when running water flows through it instead of sitting in a pan. The water draining is normal. This type of humidifer will use more water than a pan type but is much healthier due to the fact that you do not get all the build up of the pan type if you ever cleaned one. also change the water panel every year. to change the water panel there will be 2 screws on the bottom pan. Remove them and the panel will come out, buy a replacement at home depot or such store if available, otherwise from a htg company. Replacement is a little tricky to get it to line up so be patient. If you cant remove the bottom panel due to lack of room, it will come out through the top. You will have to loosen and swing the water feed tube out of the way. That is the only maintainace to this humdifier. Also with this humidifier all you have to do is turn the humidistat to off in the summer, you do not have to turn off the water as with float types. Steve