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General Aire 990-53 Solenoid Valve Assembly 24V

SKU#: 99053
List Price: $80.23 Sale Price: $66.86
Product Description

This is a 24 volt, AC electrically-operated valve that turns the water on and off to your humidifier. Preinstalled inside of the valve is a strainer screen, which filters the water before it passes through the valve, catching things like sand and dirt which could otherwise cause blockage. This valve needs to be replaced about every ten years, or more often if it fails and is stuck open or closed. Fits models 1040L, 1040LH, 709L, 709LH, 1040, 1042L, 1042LH, 1137, 1042DM, 1042DME.

(Note: This valve operates on 24 volts, however some units are equipped with a 115 volt solenoid valve. Look closely at your old one to see what voltage it is rated at before ordering this valve. This item can be mounted on the left OR right side of the humidifier.)

Don't pay attention to the version, orifice size, part number or wattage printed on your old valve. The production of this item has been changed regularly so what is important is the voltage and your unit model number.

This component is also known as part number: 7014 and 990-46

The manufacturer is sometimes referred to as General Filters, General Air but is correctly spelled GeneralAire®.


Overall Length:
3 1/4 (inches)
6 (oz)
Inlet ID:
1/4 (inch)
Inlet OD:
1/2 (inch)
Outlet ID:
1/4 (inch)
Outlet OD:
1/2 (inch)
Indicated on Product
Orifice Size:
24 VAC
Number of Wires:
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General Aire 990-52 Solenoid Valve Assembly 115 Volt

General Aire 990-52 Solenoid Valve Assembly 115 Volt

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115 Volt Solenoid Valve Assembly

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Product Reviews

Add your review of this product Global rating: 4.93 from 83 reviews
Mar 4, 2019
Solenoid by Jean Dennis (Littleton CO )

I had great help from customer service, & the part came very promptly. Thank you. All works well again!

Feb 28, 2019
Solenoid valve by Richard Fiorentini (Freehold Ne )

Easy install Perfect match Excellent!

Feb 9, 2019
It works. by Gary Kraft (Waterford Mi US)

It will be a 5 star rating based on its successful operation for a good period of time. Thanks for quick and accurate service

Jan 6, 2019
click to enlarge and zoom Mouse over images for additional views. General Aire 990-53 Solenoid Valve Assembly 24V by Rick Harding (Farmington Hills MI US)

Arrived on time, easy to install, and is working well.

Dec 27, 2018
humidifier by Peter Johnson (Grand Ledge MI US)

I was very satisfied with the price and the quick shipment. I was in a time bind to get my humidifier working for the winter and you had exactly what I needed.

Dec 22, 2018
Quick Job by Robert Weber (MOUNT PROSPECT IL US)

This was a replacement solenoid for my furnace humidifer, they only seem to last a few years. Easy job only took 10 minutes with the correct wrenches, make sure to mark the wires so that you connect them back up the right way. Shipping was fast and easy. Will probably have to buy another one every few years but still cheaper than what the HVAC guy quoted me to replace the entire unit.

Dec 21, 2018
solenoid by Dale Winters (New Haven MO US)

the unit works great

Oct 30, 2018
Judy Martin by Judy Martin (CALGARY AB CA)


May 12, 2018
Review by Gary Thomas (Louisville KY US)

Great service! I appreciate the technical support.

Mar 23, 2018
Solenoid by Dennis Foote (Aurora Il US)

Received product in good condition and time. Required some modification but worked flawlessly. Very satisfied.

Feb 6, 2018
Review by Lydia (High River Al CA)

Part fit right. Very fast delivery

Feb 2, 2018
Great product by tom bennett (hudsonville mi US)

Ordered this part for my 12 year old gen aire humidifier and it fit great and was very easy to install. First part [ besides pads] I have needed in 12 years. VERY-VERY happy with this humidifer

Jan 29, 2018
General Aire 990-53 Solenoid Valve Assembly 24V by John Smyers (Blue Springs MO US)

Part showed up promptly and worked as expected. No issues from start to finish.

Jan 19, 2018
Solenoid by Ken Romans (South Lyon MI US)

Very timely with the delivery. I’m always impressed with the customer service.

Jan 9, 2018
Perfect Replacement by Roy Monahan (Orleans On CA)

The valve was the exact replacement for the failed valve. It was easy to install and it works fine.

Jan 8, 2018
Perfect by Doug Orgon (Portage In US)

This was the exact part I needed for my humidifier. Very simple to change. It was up and running again in 15 minutes. Website is very easy to navigate and ordering was a snap!

Jan 5, 2018
Kent Kirkland by Kent Kirkland (Stevensville MI US)

I cannot say enough concerning how quickly you responded and set my order. The product was as ordered and easy to replace.

Dec 19, 2017
Exactly what was needed by Jeffrey Kadison (Deerfield Il US)

I was very pleased with the ease of ordering and the availability of the part that was needed for my 8 year old humidifier.

Dec 11, 2017
review by John Zago (Follansbee WV US)

Arrived on time, correct part, system now works fine.

Mar 30, 2017
Glad by Carl Mazzarelli (Wilmington De US)

After hearing a loud humming sound for three weeks a HVAC tech was here and said it was probally the selenoid on the humidifier. A sticker on the selenoid said Gen Filter and I was able to find General Filters on the internet and then find the part. It is working fine and I am Glad!

Feb 1, 2017
General Aire Solenoid by Mark W. Bublitz (Northville MI US)

The entire process was very smooth and easy, the price was reasonable I received my order when promised. I would use your site again and I will refer it others

Jan 25, 2017
Solenoid Valve by Mark Elston (Elmhurst Il US)

The part has worked without any problems unlike the previous generic solenoid that didn't last more than a couple of months. I am very happy with the quality of the part.

Jan 15, 2017
Solenoid Valve by Paul Spanier (Northbrook Il US)

I gave you 5 stars for your excellent next day delivery. I was disappointed however that the previous solenoid valve assembly only lasted slightly more than a year. I hope it is not an annual replacement item.

Jan 10, 2017
Excellent service by Robert Hambrecht (Raymore MO US)

Sales staff was very helpful confirming the appropriate part. Delivery was on time and correct.

Jan 4, 2017
"General Aire 990-53 Solenoid Valve Assembly 24V" by Mark Fryml (St. Lambert Qu CA)

The selenoid valve works perfectly well. I am very pleased with it. Your explanation on your website notifying clients to make sure you order the correct replacement (24V) was very important since I would have ordered the wrong one. Very pleased with your service! Thank you!

Dec 31, 2016
humidifer repair by Bob Reese (Pleasant Valley Mi US)

we moved into a new for us home built in the 70's it had an old genair humdififer. the owner listed it as an exception saying "it hasn't worked in years, of course not. The damper control knob was broken off because of a mis alignment in the flu, the valve was totally clogged and the filter was gross. after replacing all these parts the unit worked fine.If you are repairing your humidifier keep in mind after it is turned on it takes several days before you notice the humdity go up do to the volume of the house.Thanks genaire repair was simple even for this old unit.

Dec 30, 2016
24V Solonoid Valve by Mike Hammel (Fenton Mo US)

Part arrived on time and was a perfect fit as an OEM replacement part should be.

Dec 22, 2016
East DIY by Beth (White Lake Mi US)

I'm a 60ish grandma and I installed the solenoid by myself. Humidifier is now working great. Shipping was very fast.

Dec 3, 2016
Valve assembly 24v by David butler (Livonia Mi US)

It was perfect and works great!

Mar 13, 2016
PAUL by Paul Hansen (Olathe Ka US)

We received our order on a very timely basis. It was simple to install and is working properly. Thank you!

Feb 14, 2016
Water Solenoid valve by Dickie Wilson (Dayton OH US)

This item is the heart of the furnace humidifier. With just 2 open end wrenches the solenoid valve was very simple to install. There is almost no way to install it "wrong". Doing it myself saved a repair trip which would have probably cost me double for the valve plus the service trip. If this valve gives me several years of service, I'll be a happy camper!

Feb 11, 2016
Solenoid Valve by Jeff Rutledge (Leavenworth Ka US)

I had ordered this part twice, both times it has arrived in great condition and the one that I installed works good. They arrived in a timely manner after being ordered. Thank You

Feb 10, 2016
Owner by Dean Strohm (Burllingame Ks US)

It was easy to put on and was exactly what I needed to rectify the problem.

Jan 18, 2016
Professor by Hiram Reppert (Mentor Oh US)

Exact replacement. Works like a charm.

Nov 25, 2015
Just what I needed by Steve L (Omaha NE US)

We have hard water so every a number of years items tend to get hard water built up. So we needed to replace the solenoid assembly on the humidification unit. Got the part, it was fairly easy to replace, installed and away it went working as intended. Saved a lot of time and money.

Nov 19, 2015
General Aire 990-53 Solenoid Valve Assembly 24V by Syd Ballam (Powell Oi US)

I had some difficulty fitting the compression rings onto both ends of the existing tubing and the connecting the assembly to the tubes.

Nov 12, 2015
order review by Wolfgang Gregory (Surprise AZ US)

I was astonished how easy and fast the whole ordering process was. The part arrived sooner than I had anticipated. Good work.

Mar 31, 2015
Just the right part by Jeff Carter (Longmont CO US)

Thank you for providing me with just the right part for my General Aire residential humidifier!

Mar 19, 2015
All OK by Jimbo ( CA)

My only complaint was that shipping to Canada added ~$30 extra to the cost (order the Evaporator Pad and a Solenoid Valve) from import duty (Customs). While the parts were promised to be delivered in a, I believe 3-5 days, it took about 10 days because of the holdup with paying customs. Installing the part was straightforward. One thing I would have liked to have seen on your "Trouble Shooting" guide was to check the filter that is at the inlet to the solenoid. While mine was not plugged, it might have been and a simple cleaning would have solved the problem without having to buy a whole new valve.

Mar 11, 2015
Valve Assembly by Howard (South bend In US)

It was exactly what I needed to get my humidifier working again. Fast shipping. Thank You again

Feb 4, 2015
General Aire 990-53 Solenoid Valve Assembly 24V by Sean Brimer (Overland Park KS US)

It was exactly what I needed to get our humidifier up and running again. The price was good and it was delivered promptly. I am very pleased with the service from here.

Feb 3, 2015
General Aire 990-53 Solenoid Valve Assembly 24V by Alex Berry (Toronto ON CA)

I've been meaning to write to Jay at General Aire to thank him for walking me through the installation of my Solenoid Valve. With his patient good advice and a well made step by step video, I had no trouble at all with the installation. My family and I are once again breathing easy up here in snowy Canada. Thanks Jay

Feb 3, 2015
Last months order by ( )

Jan 28, 2015
Good product, identical by ( )

Ordered, received, installed. Works just as it should. Thank you.

Jan 10, 2015
Helpful customer service by Andrew Hellinger (Chicago Il US)

Thanks to a well trained staff, I got the right part. The order person knew to ask if I had a low voltage part.I received it quickly, and installed it without a problem. Thank you.

Dec 14, 2014
Homeowner by Jim Hepler (Wichita Ka US)

Got it fast , worked great , fixed my problem . Thank you

Dec 11, 2014
Home Owner by Nolan Sanders (Saint Clair Mi US)

Part works like a champ!

Apr 11, 2014
Great by S Marsh (Simsbury CT US)

Arrived fast and easy to install. A 20 minute fix (at most).

Mar 22, 2014
Homeownwer by ( )

Easy to install. Tried cleaning strainer on old unit which didn't solve flow problem. Think it was good that new solenoid came with brass fittings included. Very good service from General Aire re: order filling and shipping.

Feb 27, 2014
General Aire 990-53 Solenoid Valve Assembly 24V" by K.Derrick (Strongsville OH )

First of all, I am delighted by the service I got. It was impossible to determine the equipment model number without removing the equipment from the duct work (serious design flaw). I ended up taking detailed pics and emailing them to the service rep. Got the model number and a few days later received the valve. Excellent. Secondly- This review form is clumsy. "Title" ? What is expected to be entered there? I simply copied the text above the "Title" box that reads: " Enter your rating and review for "General Aire 990-53 Solenoid Valve Assembly 24V" ". Also "Rating" I'm guessing '5 stars' is the best.

Feb 21, 2014
General Aire 990-53 24V Solenoid Valve by Bob Dombek (Cincinnati Oh US)

My original valve lasted almost 15 years. The new valve was shipped fast and is easy to install for anyone with just a little experience with a pair of wrenches. Had to reverse the mounting bracket which was easy. Be sure to use a 2 wrench technique on the compression fittings. With the new valve and a fresh pad, my humidifier works like new!

Jan 29, 2014
solenoid replacement by don wood (grimsby on CA)

came ok and i am happy that u were able to help and send it to me. a home handy man and i do all my own work. you had an easy website to help me find what i needed, thanks again.

Jan 4, 2014
Lee by Lee Francis (Plainfield Il )

Great product, Great service Thanks

Dec 13, 2013
Humidifier Valve by Tom Housh (Prairie Village KS US)

I was able to identify the valve by part # and order it online. The new part arrived soon and was easy to install. It appears to be working properly. I saved about $200 compared to the furnace repair company's estimate. Thank you.

Dec 11, 2013
Humidifier parts by Don Millen (Springfield IL US)

The right parts and functioned correctly.

Apr 25, 2013
Alls well that ends well by Dan Janzen (Calgary Al CA)

I can buy the whole unit at a few places in Calgary but none of them sell parts. Images on website very helpful, had to make order by image as not all the numbers matched. Phoned in talked to a tech to confirm correct part and was informed some of the numbers on the part and image do not matter, if that info was on the website would have saved some concern and a phone call. Tech very knowledgeable and helpful. Order process was easy, part arrived quickly. Minor issue, UPS charged $34.00 brokerage fee to ship into Canada.

Mar 16, 2013
That's the one. by Roger Morgan (Burley Id US)

Perfect description, pictures were a great help. Took the guessing out.

Feb 25, 2013
Installation & use by Richard Spragg (Hartland Mi US)

Installed easily and seems to work fine

Feb 3, 2013
990-53 solenoid Valve by John Ancona (Sterling Heights MI US)

Excellent Replacment Solenoid....Works very Well

Jan 21, 2013
Solenoid Valve by Phyllis Martin (bettendorf ia US)

Very good service and part. No complaints whatsoever.

Jan 14, 2013
Solenoid Valve by John (Marblehead OH US)

Valve was as described and worked perfectly. Easy installation.

Jan 10, 2013
Solenoid Valve by Raman Shrinivas (St Louis MO US)

Iy works fine. Online purchase saved me money as compared to authorized dealers charge. Will come back to online purchase again when needed.

Dec 25, 2012
PRE by Paul Erickson (Valparaiso In AF)

Exact duplicate, perfect fit, easy installation, works perfectly. What more can I say?

Nov 19, 2012
Replacement of Valve by Ernie Mrozek (Attica Mi US)

General Aire 990-53 Solenoid Valve Assembly 24V I installed is working great. Hope this valve works for another 15 years like the orginal.

Nov 10, 2012
It came, it's on and it works by Darrell Vogt (Belton Mi US)

I hooked it up and it's working. That's all I wanted out of the product.

Nov 3, 2012
home owner by john b roark (kansas city ks US)

Product fitted perfect. The 1/4" fittings worked and no mods needed

Oct 31, 2012
Owner by Richard Schroudt (Lenox MI US)

Received part, and works fine

Sep 24, 2012
owner by sam cardella (tinley park il US)

good service

Mar 19, 2012
General Aire 990-53 Solenoid Valve Assembly 24V by Reed Neagle (Campbellsville Ke US)

Works great! No problems

Mar 1, 2012
contractor by David Budwit (Overland Park KS US)

Sales person was knowledgeable and helpful. Part arrived whenpromised.

Jan 24, 2012
Homeowner by Alan G. Zagorski (Des Plaines Il US)

Parts arrived quickly and are working fine.

Jan 4, 2012
solenoid assembly by Byron Kuxhaus (Royal Oak MI US)

Easy to order. Didn't need this part, so kept it 'in case'.

Dec 15, 2011
Valve by Brent Shoemaker (Derby Ka US)

Got the new valve quick and was easy to install. Works like a charm. Hopefully it doesn't stick open like the old one did.

Dec 10, 2011
Replacemnt Part by August Schaeffer (Monaca Pa US)

Excellent ..

Nov 16, 2011
Solenoid Review by Robert Hursch (Littleton Co US)

I replaced a defective solenoid on my humidifier with a General Aire 990-53 solenoid and the new part has restored the operation my humifier. No problems.

Oct 28, 2011
Instructions? by David Main (Greeley CO US)

This product was as described and needed. It is great that the part worked as intended. In the future, I would like to see a set of instructions on how to install it. While this piece was simple and self explanatory, I'm not sure the entire unit is that simple.

Feb 26, 2011
Repair to General Aire Humidifier by C. Stukins (Englewood OH US)

The solenoid valve on my General Aire Humidifier finally failed after multiple years of use. I was able to find the General Aire website easily and utilized their online order process to order several components to rebuild the unit. The part arrived within 7 days as promised. All the components were correct and the re-installation went without any trouble and the unit is now working as expected. The only item I overlooked was the drain tube. After the many years of use the drain tube clogged from rust which caused an overflow from the humidifier that lead to the diagnosis of a failed solenoid. I would not hesitate to order additional components from General Aire if I have any additional issues, and I don't expect any! Although I will have to order a new drain tube!

Feb 9, 2011
really helpful!!! by (Wichita KS )

I contacted the customer service dept. They assisted in troubleshooting my problem, didn't just try to sell me parts. The first attempt was absolutely free. (It didn't fix it, but I really appreciated the help) Parts when ordered were delivered on time and fixed my problem. I recommend these guys!!!

Feb 6, 2011
Home owner by Merrill J Robbins (Holland Mi US)

Part was delived on timely maner When I instaled the part had trouble geting water to flow in to the humidafior. called customer service thay where helpfull in helping Me getting it to work

Jan 22, 2011
Humitifier by E. Gerald Holmes (Lansing Mi US)

The part arrived sooner than I expected. I installed the part in about 1/2 hr. and it is working. Our home is much warmer now since there is moisture in the air. Thanks for the great service.

Jan 16, 2011
General Aire 990-53 Solenoid Valve Assembly 24V by ( )

Shipped promptly, easy to install, worked immediately

Dec 26, 2010
General Aire 990-53 Solenoid Valve Assembly 24V" by John M Delaney (Grimsby On CA)

installed easily and worked perfectly.

Dec 18, 2010
Simple process by bill carter (chicago Il US)

Worked out perfectly. Couldnt be happier


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