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When I set my humidistat the humidifier works fine for a day or two and then it seems to continue putting out water and does not turn off. Eventually I get a flood on my basement floor. I have a Wait 5000 which is about 3 years old. In my manual there does not seem to be a selenoid , so not sure what stops the water from running.

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Your drain line from your evaporator is clogged and need to be cleaned

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Lights on but no fan, no mist


"Take the humidistat out of the humidifier and look for the 3 slits below the restart button, take a hair dryer and send some warm air into those slits for 5 minutes. That usually recalibrates the humidifier."

Feb 06, 2014 | Honeywell QuietCare HCM-6009 Humidifier

1 Answer

No humidity in the house


Hello, the first to confirm is if you are receiving 24 volts at the transformer, if you are then check for 24 volts going into the humidistat and out of the humidistat, if voltage is confirmed there then check if your solenoid is recieving 24 volts, if it is and the solenoid is not letting water into the humidifier than your solenoid is bad and must be replaced. If you do not have 24 volts at the transformer then turn off power to the transformer and set your meter to read continuity, you should have resistance if not the transformer is bad and must be replaced. If you have power to the humidifier and not humidifieing properly then you have to set the humidistat according to what the outdoor temp is, the outside temp determines what setting and % of humidity you should have in your home. Here is a what it should be
-20 set to 15%
-10 set to 20%
0 set to 25%
10 set to 30%
20 set to 35%
above 30 set to 40%

Jan 25, 2011 | Honeywell HE365 Humidifier

1 Answer

I have an Aprilaire 700 humidifier and it won't come on. It has been in the 20's and it worked fine. We then had a couple days in the mid 30's, and it stopped working. I put the humidistat to test and it...


Did you get the plug back together. And did you plug it back in. Also make sure the Humidistat is set right. Here is site that might help you. Hope this helps.

http://www.aprilairehumidifierparts.com/aprilaire_humidifier.php?model=700&gclid=CLy4zffHnKYCFVZc2godEC51nQ

Test the humidistat-- by taking one of the wires off one of the screws, and touching it to the other-
Does the unit come on?-- Then possibly the humidistat is bad.

Let us know what you find

Mack B

Jan 20, 2011 | Aprilaire 700 Humidifier

1 Answer

Hi, We have a new house fitted with a Honeywell HE225 humidifier. It does not seem to work. Doesn't matter what we set it to, there is still way too much condensation on all the windows. We ended up...


Cut the power to the whole house humidifier and turn off the water pipe to it. If you want it running in the winter, put the water back on, but put a timer or a humidistat on the power cable to only allow it to run a certain amount of time per day, or to only run it the humidistat shows an RH lower than 45 percent (or whatever your comfort level is).

May 27, 2017 | Honeywell HE225B Humidifier

1 Answer

My unit has a new filter, all parts seem to be in place, it has filled with water. It does not turn on no matter how high I turn the humidistat.


is the water fill rod in place with float attached, and the opposit end in the switch hole? does the humidistat clik on and off when turned (just clik) put your finger or a pencil in the hole on the underside and try again. its prolly the float poor design...

Oct 28, 2010 | Bemis H12 300 Humidifier

1 Answer

Our aprilaire humidifier is only 4 years old and it does not seem to be working. We have static in the house and when I did test mode it never drained water like it was supposed to. Any ideas what I can do...


Hope this helps, check and see if humidistat is set to 35% humidity and that bypass damper on humidifier is in the open position or winter position.(humidistat is usually located on cold air return duct near furnace). Next, replace humidifier media pad, remember to replace media pad (filter) annually, you also may want to clean any lime deposit out of humidifier housing with a solution of warm water and white vinegar before installing your new media filter.Remember to turn power off at side of furnace when cleaning humidifier and replacing media. Before installing new media turn power back on to furnace, set humidistat to the on position, turn furnace thermostat above room temp., and inspect humidifier to see if water is running from top,(you may want to have a bucket under humidifier when checking for water), if you see water running, turn power back off to furnace, properly install new media filter, reconnect humidifier cover & set humidistat to 35%. If you do not see water present, check water supply valve to humidifier and make sure its turned on. If water supply valve is open, then check water supply tubing for blockage.And the last things to check is to make sure all registers through out your home are open and not blocked by any objects, also make sure furnace filter is cleaned, if none of this works refer to installation manual to see if humidifier was sized and installed properly, Good luck.

Mar 03, 2010 | Aprilaire 600 Humidifier

1 Answer

I hooked up my humidifier, and everything seems to be working fine, but I was surprised to see how much water accumulates from the drain...what is a normal amount of drainage over ther first 24 hour...


There is no "standard" amount of water that will be used.

This is a flow-thru type humidifier, which means water runs through an evaporative pad and air blows over it to evaporate the water and humidify the house.

The amount of water the unit uses will depend on the house water pressure, humidistat setting, outdoor conditions, the condition of the humidifier pad, the temperature of the air flowing over the pad, the size of the house, the number of people in the house, the amount of of moisture-absorbing material in the home like textiles, carpeting, drapes, furniture etc., and temperature in the house. There are other factors as well.

The humidistat should be set to the lowest point possible and still provide some humidification (so you don't get zapped by touching metal objects or light switches). Some stats are calibrated in percent, while others simply have numbers on the dial. If you have the stat set too high, you may see frost forming on windows or around doors, in which case the setting should be lowered.

Feb 17, 2010 | Honeywell HE220A1019 Whole House...

1 Answer

I have a Honeywell House humidifier HE 225A-1006.


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!

Oct 12, 2009 | Honeywell HE220A1019 Whole House...

1 Answer

Aprilair 760 Humidfier will not stop water flow to EV panel


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.
Good luck.......

Apr 09, 2009 | Aprilaire 700 Humidifier

3 Answers

Doesn't run


When a humidifier doesn't run, it generally means it isn't receiving electrical power or the controls have automatically shut it off. 1) Be sure it's plugged in to an outlet that works and that it's turned on. Check the electrical receptacle for power, using a working lamp, appliance, or voltage tester. 2) If the receptacle seems to be dead, check the circuit breaker or fuse that serves the humidifier's circuit. 3) Check the setting on the humidistat. If it's set lower than the room's relative humidity, the humidifier won't go on; in fact, it may take several hours for the humdistat to respond to the room's changing humidity. 4) Be sure the humidifier's reservoir is full of water. 5) Unplug the humidifier unit. 6) Check the power cord. If necessary, repair the cord. 7) Remove the humidifier's cover panel. 8) Remove the humidistat and check it (as shown below). Replace it if necessary. 9) If it still doesn't work, call an appliance repairperson, take the unit into an appliance repair shop, or replace the unit. To check the humidistat, you?ll need a volt-ohm meter. A humidifier?s fan vaporizes the water in the reservoir and blows the water vapor into the house or room. If you need to check the fan, unplug the humidifier, remove the control panel, and lift the lid. Tighten the fan hub with pliers if it is loose; this should take care of rattles. If the fan doesn?t spin easily when you try to move the blades by hand or if it is still noisy, lubricate the motor bearings with oil. To establish whether power is reaching the humidistat when you know there are no problems with the plug or switches, unplug the humidifier, remove the control panel, and lift the lid. Test it with a volt-ohm meter set to the RX1 scale (or to K[omega symbol] or [omega symbol] resistance on a digital meter). Clip the meter to the humidistat terminals. The meter should jump if you turn the humidistat from high to low. If it doesn?t, you?ll need to replace the humidistat or return it to the manufacturer.

Jan 18, 2006 | Honeywell HCM530 Humidifier

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