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Your cart is empty.The Honeywell 50027997-001 Humidifier Solenoid Valve assembly is for all True Steam models. This valve contains two solenoid valves, both valves operate on 120 VAC. One normally closed solenoid controls filling the water tank and the second normally closed solenoid controls draining the tank.
Hops&Hooks
Reviewed in the United States on October 28, 2024
Exact replacement part for my Honeywell TruSteam humidifier. Harder and harder to find parts for this discontinued humidifier.
Kvloeff in TX
Reviewed in the United States on November 13, 2023
The old solenoid valve started leaking where it connects to the tank. Replaced the tank, still leaked. Installed this part, and no more leaks. was not too difficult to install. Had to use a hair dryer to soften the tubing. but was not hard to replace at all.
DaveJ
Reviewed in Canada on October 16, 2021
This item worked well as a direct replacement for the original part, which had failed.Removal and reinstallation were not difficult.
Airspace
Reviewed in the United States on March 3, 2020
I had the 6 blinking error lights malfunction, ordered the sensor part from amazon (mine did have some small cracks all the way through the plastic sensor base). That part took 6 weeks to arrive :( I installed it and then was given the 3 blinking light error. There was no calcium build up or anything in the water valves so I ordered this solenoid part from this seller. It arrived in a few days :) Watched the youtube video and used the instructions that came with it (same as online manual) and it worked, no more error message, and humidifier is working properly now. The only part the video added that was not in the manual instructions was how to get the fresh water tube secured into the bottom most part of the solenoid assembly. (you just push it in, and then pull it back to lock it in). I did spill some water since I didn't get it right the first time, so have a big bowl and towels ready.
Louis
Reviewed in Canada on February 8, 2020
Exactement la pièce commandée et ils ont envoyé un livret avec tout les autres pièces dispknible
VM
Reviewed in the United States on January 17, 2019
Kudos to JGB Jrs review that convinced me not to be intimidated by the repair. And it is intimidating at first blush, you get a part with no instructions and nothing useful on the web. Read the said review to get started. Couple of additional notes. I had the 6 blinks as well, so first cleaned the water level sensors, didn’t work, replaced the water sensor and gaskets, didn’t work. Then I knew it had to be the solenoid. (For people who haven’t checked the sensor, you may want to do that first).Total install time took 20 mins for me, including watching a 2 min segment of the installation video on YouTube as suggested.The wires are much shorter than the original I had, but fit (just perfectly, another 1/2 inch and it wouldn’t have worked). Also first time I put in, I had a leak from the bottom (not overflow). Need to make sure you push in the water container fully before locking the bottom lock. Hope this helps!
Customer
Reviewed in the United States on May 27, 2018
Seems like these Honeywell humidifiers are pretty crappy to start with. Bought this new valve, and as the old one, it leaks (at least this one actually works). For now other than the leak it does the job, we'll see.
MotoGuy
Reviewed in the United States on February 16, 2016
This replacement solenoid for my Honeywell TrueSteam humidifier worked like a charm. I recently had a problem with water overflowing the humidifier. The troubleshooting section of the manual gave a procedure for dealing with the six blinking red lights on the front panel, which included replacing the water sensor. I did that, but it did not fix the problem, so I went online again and did some more research. Others had reported that they had to replace the solenoid valve. (My guess is that some scale got caught in one of the valves, because I have not been good about changing the water filter regularly.) I called my local HVAC dealer and they estimated $300-400 to fix it, but the part itself is only about $60 so I decided to try and replace it myself. It was a little tricky because I couldn't find any instructions, but it's not overly complex. You just have to keep track of what plugs into what as you take it apart.In any case, replacing the solenoid took me nearly an hour without instructions--I was being careful not to break anything, and I did take some time to clean out the water tank again. When I put it back together, it took a little while for the system to recognize that the humidifier was back online, and then it had to fill the tank and start heating the water. After an hour or so I checked and found that everything was working normally again. (Whew!)
K. Bever
Reviewed in the United States on March 30, 2014
Like the price, again, it is very hard to LOVE an item such as this, when you have no idea how well it will hold up. Arrived quickly, packaged nicely. Seller deal was excellent.
James G. Bruen Jr.
Reviewed in the United States on March 11, 2014
The humidifier red light was blinking 6 times and the water was flowing continuously, so time for a new solenoid valve.Don't be intimidated by this repair. I'm not much of a handyman but this solenoid valve was very easy to install. Drain the unit, unplug the humidifier, turn off the water, slip out the water feed and drain lines, take off the (drained) water tank, then lift the unit off the mounting bracket (see below). Remove one screw to take off the cover. Disconnect the solenoid clip on plug from the circuit board. Use a screw driver to release the four pressure clips that hold the back on. That exposes the valve; pop off the one remaining water hose. You can then slide the solenoid valve out of the frame. Reverse all this to put in the new one. The directions I just typed out are so lengthy that they make this repair seem more difficult than it is: as I said, I'm no handyman but this took under 15 minutes -- and I went very deliberately.The most difficult part for me was removing the unit from the mounting bracket. It took me a bit to discover that the bracket has a piece of metal that protrudes and acts as a lock to prevent accidental removal of the unit. That piece of metal is clearly visible in the Honeywell video on Youtube on how to install the unit, but the video never mentions its function. As you look at the bracket, it's on the left. It doesn't hurt to look at this video before changing the solenoid valve, and it probably will make you more comfortable about taking the unit off the mount and reinstalling it.
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