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Aprilaire #224 celinoid not opening, water not flowing

Humidistat seems to be turning on and off BUT not kicking celinoid open

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It may be kickin on but you dont get water there is an metering device {little piece of plastic with hole} that cuts down on waste water it may be clogged to see if it is opening take a screwdriver and see if when humidastat is trying to work that you have a slight magnetic pull on the opposite end where water lines go

Posted on Feb 06, 2009

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My aprilaire humidifier model 500 series does not seem to kick in. I try moving the manual control when the furnace kicks in but even turning the control to the max nothing happens


Check to see if you are getting 24 volts at the transformer, if you are then bring the power directly from the transformer to the solenoid valve and see if the solenoid valve clicks open by moving the knob on the humidistat. If nothing happens then most likely the solenoid valve is bad and needs to be replaced. If the solenoid valve does work after bringing power directly to it then either tne problem is the humidistat it self or the sail switch/current sensing relay.

Jan 09, 2011 | Aprilaire 550 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

Aprilaire 600 problem


It sounds like you got it...

The solenoid will not open with only 13 volts to it. Jump or apply the full 24-27 volts to the solenoid and see if it clicks and opens and allows water to flow.

If the valve still won't open or pass water, start looking for a plugged inlet solenoid inlet screen or a faulty solenoid valve as well as a faulty humidistat.

Jan 06, 2010 | Aprilaire 600 Humidifier

1 Answer

My Aprilaire 550 is bone dry. How do I know if its the Humidistat or Celinoide?


Turn off the water to the humidifier

Disconnect the water line to the inlet water valve (the solenoid), catch any excess water or drips in a small container

Turn the water back on slowly and see if water flows through the open line (the one you just disconnected - catch the water in a small bucket)

If you have water to the valve, it's probably the solenoid valve - you can test this by reconnecting the water line and turning the humidistat all the way up. You should hear a click as the solenoid tries to open. If it clicks and no water comes out it's the valve. If there is no water to the valve, you'll need to detrmine the reason(s). Sometimes the small line tap valves commonly used with humidifiers can plug up or malfunction. If you try to repair or replace the tap valve, make sure the water is turned off.

If no click, it could be the humidistat or there is no power to the unit.
If the humidistat is bad, you won't hear any click and no power will be sent to the solenoid valve. In that case, the humidistat may be defective.

Depending on your comfort level and knowledge, you can try applying power directly to the valve by bypassing the humidistat, but only try this if you are comfortable working with electricity. The voltage should be around 24 volts (in the USA) , which is low, but requires some knowledge.

Dec 29, 2009 | Aprilaire Humidifiers

1 Answer

My Aprilaire 560 doesn't shut off even if the blower is off.


My Aprilair 560 turns on and off repeatedly.Making a loud banging sound.Changed my water valve worked 1 day and started agin.

Dec 20, 2009 | Aprilaire 550 Humidifier

1 Answer

Aprilaire 560 will only click and flow water when turned to "test" does not work in any other settings?


Humidity must be hi enough in the house or Humidistat is not working. Do you any way to check humidity in the house?
If the Humidistat is set as Automatic, try to leave it as Manual.

Dec 03, 2009 | Aprilaire 700 Humidifier

1 Answer

Power is off to aprilaire 550


The Aprilair Hum. donot have a restart button. All there is there is just a 24VAC Solenoid that opens and lets the water flow throu a tube. Check your humidistat, check your wire going to the furnace control board and also your current sensing relay if you have one.

Feb 01, 2009 | Aprilaire 550 Humidifier

1 Answer

No water flow to the humififier


I've been working on the Aprilaire 110 unit today, after encountering the same problem. Here's how I fixed it: First, with the humidistat turned to 0%, I turned off the water supply saddle valve all the way (all the way to the right)--and then turned it back on all the way (all the way left). Still no water flow. Second, I slightly loosened the inline valve nut on the discharge side of the solenoid on the side of the 110 unit. Water began flowing, so I tightened it back up; and now the water flows freely. Conclusion: You may have some mineral deposit buildup in your lines, as I apparently did.

Nov 25, 2008 | Aprilaire 600 Humidifier

3 Answers

Aprilaire 560 humidifier


Hello All,

Was having a similar problem. Disconnected the source line and opened saddle valve. I was getting water to the solenoid but nothing out the other side. My humidistat doesn't have a "test" setting, it's either off or the highest humidity. I held the outbound line in my hand and experimented with adjusting both sadlle valve and humidistat. I didn't get any water until I opened the saddle valve MUCH further than I thought was necessary and turned the humidistat to near the highest setting. Once I had water coming though I experimented with the setting on the humidistat, turning it off and then slowly increasing the humidity until the solenoid clunked and water started coming out. I would recommend anyone having this same problem to open the saddle valve all the way (I was surprised how many turns that took) and set the humiditstat to it's highest setting.

Randall

Dec 15, 2007 | Aprilaire 550 Humidifier

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