Great vid! The only notes I would add is that the piezo element manufacturers rate the elements for 3000 hours of useful life. So at 10 hours a day for a month, and with six or seven months of use a year- you get the picture. It's the big weak link in all of these type products and it's why they will fail. The second note is that you will need to know the exact operating frequency and peak-to-peak voltage amplitude from the driving circuit. Find someone with an oscilloscope if you don't have one. Piezo transducers by their nature are only efficient at one single frequency and they will overheat and burn out quickly if overdriven. (Never run one of these babies without water!) The other note is that some sellers list their products by the size of the outer silicone ring and others list the size of the transducer itself, so it's a good idea to make sure which dimension is being specified in the ad.
This was exactly what I wanted to find on RU-vid. I had a different humidifier but I followed along and thought it would work for my humidifier. Of course it did and the link for the 20mm ultrasonic piezo (2 pack) worked for me. I took the humidifier apart replaced the piezo. NOTE - I did not solder any connections on the board, I just cut wires from the old piezo and soldered them to the new piezo wires. I used some shrink wrap tubing over the soldered join to leave no bare wires. Thanks again - Steve
Should have said but my humidifier was a Homedics Cool mist humidifier from Bed Bath and Beyond but here is a link to the same one on Amazon. amzn.to/2UV7fud
Thanks for the video. My humidifier was a running weakly. I used your video to show me how to disassemble it. All I needed to do was to remove the rubber seal from around the membrane, clean the membrane, and re-assemble everything. Working great now.
Dustin, I want to thank you for making this video. I have very little experience working with electronics or soldering things together but I bought the replacement parts on Amazon and gave it a shot and I'm happy to say it was a big success. I'm only kicking myself that I didn't see this a few years ago as this is my second humidifier of the same model and I threw the last one out when this happened. Again, thank you, I'm really happy to have been able to fix this myself.
Michael Montecuollo fantastic. I’m glad you decided to give it a try and even more delighted that your fix was successful. My thought is always “it’s already broken, what do I have to lose?” Thanks for watching and keep looking for things to fix.
Thank you! This was so perfect. I had the exact one and it quit after a month and I was so grateful to come across your video and throw well your tutorial was. I’ve never soldered in my life and I went and taught myself that, ordered the mister and had it fixed in 10 mins start to finish. Thank you so much!
Exact same model here. I stupidly left mine on overnight after it stopped making mist and now the green light won’t come on at all. I feel dumb. We only bought it in February of this year, and it sat unused all summer. Edit/Update: going to take apart and see if I can find a fuse anywhere. Hopefully if that’s all that went for the power then I’ll be able to replace it followed by the piezo. Great vid, thanks for this kind of content!
Amen brother, keep it out of the landfill. I consider you helping to keep the planet green. I do the same with all my appliances. Well, until the job is too big then you replace :).
Thanks… our humidifier is a different type, but based on your video I suspect the same root cause and repair for our model… thank you for this helpful video!
Good job. I have a different brand but found the same thing, same part size and all. Mine only lasted one winter but since the season is over now, I ordered a five pack from china for a lot less so I may have enough to last five seasons. Also I don't want to mess with soldering that printed circuit board so I'll just use butt connectors to wire it. Nice to see yours work tho. Thanks.
I wish I had equipment and know how to fix mine as it’s a $200model w exact same problem. Hate to put it in the landfill….glad to see it can be repaired. Thanks!
Hello Dustin, Thank you for taking the time to make and post this video. My humidifier just stopped producing mist. Now that I see it is not that difficult, I will try to fix it.
Thanks for this video. I have 3 x Medisana ultrasonic humidifiers for my plants, and paid €64 x 3. Two of them stopped working after 4 months of continuous operation during the day and the third one now is almost stopped misting. I guess I have to follow your steps and dust off my skills with soldering new piezo discs.
We bought a taotronics mister about a week or two ago and yesterday I observe it only seemed to be working at "half mist" power. The disc works but it doesn't seem to be making as much mist as it should. After watching your video I now have an idea of what to replace if it comes to that. I'm going to try cleaning mineral buildup around the disc and rubber ring first. Thanks very much for your video.
@@DustinRogersinMO Well, the new piezo discs showed up and I swapped a new on in. Issue persists, which leads me to believe it's something on the controller boards. I took it apart again and fiddled with the plastic wire jumper connectors. I flipped it over and it seems to be misting again the way it was. So, I guess one of those connectors is loose.
gee...I appreciate this easy to follow video and explanation. I'm anxious to attempt to repair my humidifier. I like it but was disappointed that it quit "misting" after the first year. I was ready to toss it when I found your video. You make this look SO easy. Wish me luck!
@@DustinRogersinMO it worked beautifully for a year and then everything stopped...power light won't even come on. BUT.....I did get another year out-of-it. Your video was great, informative, and easy to follow. Thanks, again for posting and helping others
@@MikeJones-rk1un I actually DID solder the wires as he instructed but I was super careful not to disturb any other areas on the circuit board. That is NOT something I care to work-around and it was nerve-wracking to attempt. Dustin could be a surgeon! (hehe)....he made it look so easy
@@carlamarcantel91 it may be worth it to replace the piezo again. Depending on the hardness of your water, it could be shortening the life of the piezo.
You show de-soldering on the circuit board. On my model of "Air Innovations" I couldn't get the circuit board unfastened and feared doing damage by trying to remove the screws. I just cut the wires and soldered them together, using small heat shrink tubing to cover the joints. I had to buy a bag of 5 piezos online for 20 bucks, couldn't get just one. But 20 dollars vs. 90 for a new humidifier is a good deal.
Thanks so very much for this video!! I have and air-o-Swiss U200 that I plan to try this on. I do get a small amount of mist, but only at the highest setting. This should do the trick!
Very informative. I didn't know it was piezo driven. Unfortunately, I took mine apart and the circuit board was limed up and rusty. It was a leaky machine of potential death. Into the trash it went. Interesting all the mineral deposits from cheap supposed distilled water though.
@@fourak1 So you tried it or you're a fan? Wire nuts are poor and even dangerous on small gage wires. Butt connectors are way easier and safer. Let us know if your house burns down and your family dies.
I tried this, following your instructions, but no luck. Is the new transducer bad? I have no way to test it. Is something wrong with the water-level sensor? Possible, but what can I do to verify it or subvert it? It looks like I'll just end up buying a new humidifier.
ThX for the great video!!! My comment: It is very sad to see such a waste when one little part goes bad and the hole thing gets thrown away, it is such a waste. China uses such cheap parts in thing like this. Easy Fix, ThX Again.
Audacity Of The Mind you’ll need to remove the original piezo disc and measure the diameter of it. I posted some links in the description to the common sized versions.
This is posted several yrs ago now but hopefully someone can answer... I first lost the floater the bottom part. I tried to replace it, not really the type it usually had and my humidifier still did not work. I tried buying the disk and replaced it but it still didn't create any mist. Now I am not sure if the disk is still the problem or the floater. Is the floater important? Coz I rmr before (when I first bought it)I turned on the humidifier and took the floaters(which I didn't know what it's purpose before) it produced mist. I tried looking if floaters are sold separately but I don't see any from all the ol shops I browsed.
I bought a "Made in China" room humidifier two years ago for use during heating season. Last year I bought a 5 pack of atomizers and replaced the defective one but this year the unit stopped doing anything. I hear a very high pitched whistle when power is turned on but no fan or vapor. If I have to buy another I would at least like to get a unit that will use the same atomizers I have but would really like to fix the one I have.
Hi Dustin. Thanks for sharing. I have different brand but same concept and the water leaks. Which part that potentially i should check and fix. Thanks.
Ahlia Homes it’s going to depend on where it’s leaking from. There’s a silicone rubber around the piezo disc that could be torn, causing water to leak past it. It could also have a crack in the tank or possibly where the tank pieces are glued together may be failing.
I got a whisper quiet cool mist ultrasonic humidifier too and it has a nightlight when I’m scared of the dark at night or when I’m coughing the humidifier will protect me it’s got by my side
Thanks Dustin! What if the piezo that came with the humidifier has an attachment on the end (not two open wires). Is it reasonable to solder the stock wires to the piezo disk itself? Thanks again and I’m all for keeping things out of the landfill!
I think I can do this! My issue is the humidifier is a Pure Guardian h4500. The piezo looks different...metallic. Would an aftermarket replacement work too?
Thanks for the helpful video. Is there a way to test piezo to ensure that's the problem? In my case, fan is running, all LED's are green, but no mist. Thanks
Maverick Person I don’t know of a way to test a piezo without an ultrasonic generator. I’d guess that the piezo is the issue and is the most economical part to replace.
@@DustinRogersinMO so I replaced the piezo with a new one and still no mist, everything else is working. Is there a polarity? Because I tried both ways. Thank you.
Hello Dustin ! Thank you for your video. i have a SAFETY 1st cool mist ih304. I have green light , a liiiitle bit of mist but not enough. Where di you bought the spare parte you changed on video pls ? Thank you. Math
Sharon Deminsky it really depends on your soldering skills. Soldering wire to wire is easier that soldering wire to disc. If the discs are over heated, they may become inoperable.
Soldering iron? It’s the best way to do it, and there’s a link in the description to the one I use, but some other commenters have said that they just stripped the wires and twisted them together and secured each of them with a small wire nut or electrical tape. It’s really going to depend on how much space is inside your humidifier housing and if extra wire/wire nuts will fit.
I picked this up for work. My last one was smaller ru-vid.comUgkxtD9aJ2m6GU-X1IChQxjn9l31K1A7Kpwj and cuter but the motor burned out within a few months. This one's footprint is a tad bigger but it still doesn't eat up a lot of desk space. Its size and shape blends into the background nicely. This has a good size water container so I don't need to refill more than once a week. I use filtered (not distilled) water because cleaning up after our hard water is tough at work. I like that this has several settings. It's also very quiet. (I have a silence naxi in the next cubicle.) It also hasn't left that terrible while powder, so far, that some humidifiers leave. Been using this for a month or so now and am very happy with my purchase.
You may be able to find a parts diagram for your specific model online. Otherwise, you can measure the spot where the magnet goes and search for one of that size to purchase.
Nice video. 20mm piezo comes in 2 different resonant frequencies. 1.7Mhz and 2.4Mhz. Circuit board has both frequencies marked where piezo connector is. Which one should I buy? Pureguardian brand humidifier.Thanks!
Barrin Bonet I’m not sure I know enough about them to give a reliable answer. Does your board have separate contacts for each frequency? If so, I’d say order whichever piezo and just be sure to connect it to the appropriate contacts. If the same contacts are marked with both frequencies, maybe it doesn’t matter which you choose?? Sorry I can’t help more, maybe someone else has experience with that and will chime in. Thanks for watching.
Thanks for the video. Anyone replace the dial (voltage regulator, I believe) before? I can hear and see my piezo working, but the dial doesn't affect output.
Gary Jeffers II does the dial have two wires or three wires coming from it? If three wires, it’s most likely a potentiometer which are fairly easy to test. You may also try to google any markings on the dial component. You may be able to pinpoint exactly what kind of device it is and find a test procedure for it.
I have the same model of humidifier what was the size so I can get one mine just shit out on me today or can you send me a link so I can order me one thanks
Holander Gonzalez can you tell where it leaks from? It could be a bunch of issues. Cracked tank, broken seal on the fill cap, bad/stuck float, torn seal on the output port, etc
I love how he didn't edit out the silly red-light-green-light fail at the start! Keeping it real. It would be helpful if you said early on that this is a replacement part fix. Annoying. *Oh the description says that.
Unless you have replacement terminals and the correct tools to remove and crimp into that connector, your easiest method would be to cut that connector off the old piezo and solder/heat shrink onto the new piezo.
Lizzie Terry depends. Is it leaking? Is the float hung up and not closing the valve? Is your air already too humid and therefore the mist settles to the floor?
Loved the video. I have a very old vintage humidifier and I'm pretty sure it's the same problem. I hope so anyway. Would be an easy fix if it was. I'm just not sure what size my piezo is I don't think I have anything to measure something that small. Fingers crossed🤞🏻 here's a link to what mine looks likeru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-BHqsKHnfu6o.html
No I don’t think so it’s still brand new just purchased like 3 mos ago . I thought maybe cause it needed cleaning which I did per instructions. But still no luck
If you bought the piezo unit that had the wires already attached, you could cut the wires off at the old piezo unit, strip the ends and then twist them together with the wires from the new piezo and tape them up, use small wire nuts, or crimp connectors.
@@DustinRogersinMO cool,i will check it out yeah my humidifier is a bit more fancy it has oscillation so it is worth it to fix it for sure i will order them but i am not sure the size of my disc, i don't have a caliper, i just took out my disc and it is almost exactly the diameter of a penny maybe a cunt hair wider , not sure if this is the 16, the 20mm or the 25mm
