Question about Aprilaire 700 Humidifier

Open Question

Water not flowing into Aprilaire humidifier

I went to change the filter and notice no water was flowing. The unit remained completely dry even after running in test mode.

I searched here and could not find the solution, but after troubleshooting I did solve the problem (posting this as a solution below)

Posted by on

  • 2 more comments 
  • kjohndoe Nov 28, 2008







    Normal
    0


    false
    false
    false







    MicrosoftInternetExplorer4









    /* Style Definitions */
    table.MsoNormalTable
    {mso-style-name:"Table Normal";
    mso-tstyle-rowband-size:0;
    mso-tstyle-colband-size:0;
    mso-style-noshow:yes;
    mso-style-parent:"";
    mso-padding-alt:0in 5.4pt 0in 5.4pt;
    mso-para-margin:0in;
    mso-para-margin-bottom:.0001pt;
    mso-pagination:widow-orphan;
    font-size:10.0pt;
    font-family:"Times New Roman";
    mso-ansi-language:#0400;
    mso-fareast-language:#0400;
    mso-bidi-language:#0400;}




    1. Turn
      off the water valve to the unit. If
      it is a “vampire tap” (screws into the pipe), turn it clockwise until it
      turns all the way into the pipe






    1. Unscrew
      the copper pipe left of the Solenoid (brass piece with wires under the
      humidifier). Watch out for some
      remaining water.






    1. Slowly
      turn the water valve back on. If no
      water comes out or it is slow dripping, the problem is with the valve
      or the pipe itself.






    1. If
      this is the case take the other side of the pipe off the value/ tap and
      blow throw it to clear obstructions. You may need to replace this if there is
      resistance due to mineral build up.
      My problem was the vampire tap going into the pipe. The fix was to turn the valve all the way in and out several
      times until minerals clear out or replace the valve. On a vampire tap value this is involved given
      you need to drain the pipes. (This was my problem)









    If water does flow, next you need to check the Solenoid.






    1. Take
      this completely apart by removing the nut holding the Solenoid from the
      inner valve. Unscrew the plastic
      tube from the right and the two screws holding it to the humidifier.






    1. Blow
      through the plastic tube to make sure it is clear. Air will not flow as strong through it as
      the diameter is smaller.






    1. Use a
      pipe cleaner to attempt to clean each side of the solenoid. You will find a plastic filter in it that
      you should also clean and replace. Air will not
      pass through the solenoid due to the fact it is a closed valve (requires power to activate a magnetic filed (I think)). One could get creative to open it or test
      it, but I did not need to go that far.





    If all paths are clear and water is flowing properly, it is
    probably the solenoid, the wiring or the switch.


  • fabricista Nov 28, 2008

    Water is not flowing on the aprilaire 700 humidifier. But if I reset dial, while furnace is running the water flows. It does not flow on the next furnace cycle, though. Is the celenoid bad or the switch panel, and can I fix it myself?

  • kjohndoe Dec 02, 2008

    sounds like the switch / humidity sensor. When you turn it you should hear a click when it gets to the humidity level that requires draw. If you don't hear that it could be the switch

  • Anonymous Dec 04, 2008

    Same problem, fan runs, hear a click on the dial, just no water.

×

6 Suggested Answers

  • 3 Answers

SOURCE: Humidifier control .

if humidifier was wired into thermostat circuit for power instead of seperate transformer , this can happen. you need to see if you voltage going to the solenoid valve. if you do , and it isn't opening, the valve is bad . this is assuming that it is using a # 50 relay to come on only when the fan runs . . make sure the water valve is open

Posted on Dec 28, 2007

  • 2 Answers

SOURCE: What should my humidifier be set at for the winter?

Hi, Jennifer:

I'm no expert, but those who are seem to agree that the first thing to check is your evaporator panel. Aprilaire recommends replacing it annually--so if you haven't replaced it recently, that would be the first step to take. Next, check the power supply to your Aprilaire unit. Turn the humidistat to 0%, and then turn it slowly back toward 35% until you hear a click at the unit. If you don't hear a click, you'll want to check that the unit is in fact getting electric power (you may want to get an electrician or furnace tech to do this). If you do hear the click, the next thing to check is whether you have sufficient water flow to your Aprilaire unit. On mine, I had to adjust my water supply saddle valve, as well as the inline valve on the discharge side of the solenoid (see prior post from this morning)--and this seemed to clear the lines and restore water flow. Once you achieve proper water flow, you will probably want to set your humidistat at 35% for winter temps of around 20 degrees F--but be sure to adjust it downward for colder weather. Comments, anyone?

Posted on Dec 15, 2008

  • 2 Answers

SOURCE: solenoid on Aprilaire 600

solenoid valves dont just burn up just like that you have a recurring restriction due to bad water.Check the saddle valve at the water heater first then check for postive water flow at inlet to the solenoid valve,if you have water flow the valve is clogged with sediment.

Posted on Jan 13, 2009

  • 1 Answer

SOURCE: water keeps running into humidifier even furnance blower is not

This sounds like, the 550 transformer is not connected to the blower motor power connection (in parallel)

Posted on Mar 04, 2009

  • 2 Answers

SOURCE: how do I know if my Aprilaire 550 humidifier is working?

Should the water flow through the water pannel al the time the blower is running?

Posted on Dec 18, 2009

  • 232 Answers

SOURCE: Testing a Aprilaire Humidifier 600 Controller

if it works in the test mode then it should be okay but you can get a humidity gauge from radio shack and set in the house to see how high or low its is. the humidifier is only going to give a max of 45% humidity

Posted on Dec 31, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Aprilaire 700 water never shuts off


the float may be bad or sticking allowing water to run continusly even when unit is off.

Nov 06, 2013 | Aprilaire 700 Humidifier

1 Answer

Should water be continualing running through the drain tube?


Water will flow over the filter pad as long as the unit is calling for humidity. once the unit is satisfied the solenoid valve should stop the water flow. if the water continues to flow with out call then solenoid valve has failed open. hope this helps.suppling an owners manual in case you need one.
http://www.aprilaire.com/themes/aa/en/manuals/AA-Humidifier-Owners.pdf

Dec 21, 2010 | Aprilaire 600 Humidifier

1 Answer

The water will not "kick on" so to speak. I have


you can check the flow valve to see why the water is not flowing in auto or you can get a new unit

Dec 09, 2010 | Aprilaire 400 Humidifier

1 Answer

Not working


HI, Troubleshooting an Aprilaire Humidifier

Aprilaire, a manufacturer of indoor air quality products including thermostats, air cleaners and dehumidifiers, also offers a line of whole house humidifiers. Installed in your existing heating and cooling system, humidity is produced by a supplied water source that flows over a water panel before being distributed throughout your air through the heating and cooling system. Issues you may need to troubleshoot with your Aprilaire humidifier include error messages and the unit producing too little or too much humidity.

Things You'll Need:

Replacement water panel


Turn down the control dial by one setting if condensation appears on your windows or walls.


Turn up the control dial by one setting if there is a lack of humidity, often indicated by dry skin or peeling wallpaper or paint.


Turn the control dial to "Test/Reset" if the humidifier does not run. Verify the heating and air conditioning unit blower is operating. If the heating and air conditioning unit is not operating or you are unable to resolve the issue contact a heating contractor.


Contact a heating contractor if you turn the control dial to "Off" and the humidifier continues to run.


Contact your Aprilaire dealer (see Resources) if you notice an error code on the display and the "Call Dealer for Service" light flashes.


Turn the control dial to "Off" and turn off the water supply if the yellow "Change Water Panel" light flashes. Lift the front panel off of the humidifier. Slide out the water panel. Insert a new water panel. Replace the front cover. Turn the control dial to "Test/Reset" until the "Humidifier On" light flashes. If you feel uncomfortable changing the water panel, contact a heating contractor.


Tips & Warnings

Purchase replacement water panels through your Aprilaire dealer or a heating contractor.



You can get parts from the link below:

arnoldservice.com/humidifier_parts.htm


Hope it helps.

Thanks for using fixya....

Nov 17, 2010 | Aprilaire 700 Humidifier

1 Answer

Water does not seem to be going through the unit


With the heat on, turn control knob back&fourth from test.U should here a click each time.If no click check hum transformer power.If it clicks flush out water supply pipe poss cloged.

Feb 27, 2010 | Aprilaire 600 Humidifier

1 Answer

Aprilaire Model 560bone dry, water is on, what can I check?


Yes, just check to see if you have 24 volts going into the solenoid. If you do and it is not opening its probably bad. Since you verified the water lines, filter, orifice and saddle valves are not obstructed. Change the solenoid valve. When you price the part. (it's not cheap) consider paying about 30% more and just change the whole unit.
Good luk
HVAC Teacher

Feb 18, 2009 | Aprilaire 600 Humidifier

1 Answer

Fan running but no water flow


the humidistat on this unit just acts as a set of dry contacts. with the humidifier plugged in, you should be able to touch the 2 brown wires by the water solenoid together and get the power fan to run and the water solenoid to enrgize. if you do this and water does not flow, you most likely have a bad water soenoid. it is either electrically bad, or just plugged with water deposits. sometimes you can pull it apart and clean it, sometimes you just have to replace the solenoid.

Jan 26, 2009 | Aprilaire 700 Humidifier

2 Answers

Orifice clogs to Aprilaire 600


http://www.aprilaire.com/themes/aa/en/manuals/600a.pdf look at page thirteen in this manual there is allready a inline filter on the unit. hope this helps

Jan 06, 2009 | Aprilaire 600 Humidifier

Not finding what you are looking for?
Aprilaire 700 Humidifier Logo

Related Topics:

1,412 people viewed this question

Ask a Question

Usually answered in minutes!

Top Aprilaire Humidifiers Experts

paulcarew

Level 3 Expert

1863 Answers

Ken Thomas

Level 2 Expert

118 Answers

Mack Baxter

Level 3 Expert

379 Answers

Are you an Aprilaire Humidifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...