Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Buy this Unless You Need It

I thought a bad solenoid was the problem with my Honeywell humidifier. It wasn't. A hard water deposit had plugged a the pinhole sized inlet on the fitting that goes into my solenoid. Once I turned off the power and water, remove the water line and the inlet fitting; I cleaned out the pinhole and the little black screen inside the silver fitting and could blow through it. Put it all back together and the solenoid was was working like a champ again. It is awesome that this solenoid is available here, just make sure that that is really the problem first. I fixed mine for $0.00.