Weak ultrasonic humidifier (works but very little vapor)?
I have a second-hand (so out of warranty) Holmes humidifier, one of the Cool Mist ultrasonic models. A couple of weeks ago I let it run dry accidentally, and since then it barely produces any vapor.
Points of note:
- The fan is OK.
- The transducer (metal plate that vibrates to produce the vapor) is definitely running but it's just far too weak. I can see the water 'jumping' when I lift the reservoir off the base, but the vapor is so little it's barely visible. Before this happened, I could see lots of vapor even on the low setting.
- I cleaned all the scale off the transducer and water level sensor with vinegar and a soft toothbrush but it didn't help.
Help troubleshoot please?
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Tagged with: cool mist • holmes humidifier • models • soft toothbrush • transducer • vinegar • warranty • water level sensor
Filed under: Ultrasonic Humidifier Discussion
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The fact that it ran dry has ruined it! These transducers are designed to rely upon continual water contact to not overheat and die a sudden death. What you suspect to be working is just the transformer trying to excite the damaged transducer. The ill transducer will respond but only as a token of it's former efficientcy. It's like a good car running on flat tires.