Question about Holmes Products HM5080-U2 Humidifier

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HM5081TG Reset Light won't turn off

I have a HM5081TG Humidifier, which has an automatic shut off feature.  When the humidifier is empty the reset light is illuminated, and the humidifier automatically shuts off.  I have refilled the humidifier following an automatic shut-off; however, the reset light turns on every time I turn on the humidifier and the humidifier will not work (i.e. heat the water and humidify the room).  The reset light just remains on every time I turn on the humidifier and nothing happens.  What can I do?

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Re: HM5081TG Reset Light won't turn off

I'm sure you've read the instructions, but in case you've misplaced or forgot them, to reset the "reset" you have to unplug the humidifier for 5 minutes.  The steps are:
1. Turn knob to "reset." 2. Unplug the unit. 3. Refill and replace tank on unit. 4. Wait 5 minutes. 5. Plug unit in and turn knob to "high."
If that doesn't turn the reset light out, re-do all 5 steps.
Hope this helps.

Posted on Dec 31, 2007

Re: HM5081TG Reset Light won't turn off

Reset the unit once it is refilled by pushing the power button and holding it down for 5 seconds before releasing. This should reset your unit to factory settings.

Posted on Oct 24, 2007

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Flashing red flight

Its probably the cleaning light that comes on periodically to remind you to clean the unit. Shut off the unit AND when you do so hold down the power button for several seconds until the flashing red light shuts off. The cleaning light should stay off until the next cleaning is due.

Per the Air-O-Swiss FAQ:

Q: Cleaning light is flashing (AOS U650, AOS 7135, AOS 7142, AOS 7144, AOS 7147)
A: Switch the unit OFF and unplug it. Empty the water in the base. Rinse the base with hot/clean water. Do not submerge the base! Visually inspect the base for dirt or mineral build up. If soft water is used decalcifying the unit every 4 weeks with EZ Cal is suggested. If hard water is used the unit should be decalcified every 2 weeks. Do not forget to reset the clean light after resetting the unit.

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We noticed the humidity went down to 30% and I adjusted the rate to increase Now our Aprilaire 400 says to change the filter. I did that, and it still says to change the filter. The furnace runs fine....

If your humidifier is equipped with a Digital Humidifier Control with Water

Panel change indicator, after replacing the Water Panel, turn the control

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Sorry to read about your problem, I hope this helps you out.
did you hit the reset

Digital Humidifier Control (Model 700): (Automatic or Manual mode) Check system operation and reset Change Water Panel indicator by setting the knob to "Test/Reset". With HVAC blower operating and HVAC calling for heat, humidifier will operate for one minute. DO NOT LEAVE IN TEST MODE AS HUMIDIFIER WILL NOT OPERATE.

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I replaced the water panel on our aprilaire 600 humidifier. I adjusted the thermostat to call for heat to test it. When the dial (non-digital control panel for the humidifier) is turned to test/reset,...

Thank you for contacting us with regards to your model 600 Humidifier. The Change Water Panel indicator should flash when the control knob is set to the Test/Reset mode. The flashing indicates that the timer has been successfully reset. However, the humidifier should operate for the first 60 seconds of Test mode as long as your furnace is running. If your humidifier does not turn on, contact your installer. The humidifier may require service.
We appreciate the opportunity to be of assistance.

Brett Phillips
Technical Support
Research Products Corporation

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Per the operators manual you have to reset it. 1. Unplug the unit
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