Most likely it is the water sensing transistor (C1815) in the unit. This can be replaced but it would have to be by someone who knows how to repair electronic instruments. The cross for the C1815 transistor is NTE85 and sells for about $1.50.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The humidstat controler has failed. By cleaning the humidfier you introduced moisture into the system. Dry the humidstat controler with a hair dryer and try the humifier again. If the unit still does not shut off at maxium setting. Replace the humidfier controler.
Aprilaire, a manufacturer of indoor air quality products including thermostats, air cleaners and dehumidifiers, also offers a line of whole house humidifiers. Installed in your existing heating and cooling system, humidity is produced by a supplied water source that flows over a water panel before being distributed throughout your air through the heating and cooling system. Issues you may need to troubleshoot with your Aprilaire humidifier include error messages and the unit producing too little or too much humidity.
Things You'll Need:
Replacement water panel
Turn down the control dial by one setting if condensation appears on your windows or walls.
Turn up the control dial by one setting if there is a lack of humidity, often indicated by dry skin or peeling wallpaper or paint.
Turn the control dial to "Test/Reset" if the humidifier does not run. Verify the heating and air conditioning unit blower is operating. If the heating and air conditioning unit is not operating or you are unable to resolve the issue contact a heating contractor.
Contact a heating contractor if you turn the control dial to "Off" and the humidifier continues to run.
Contact your Aprilaire dealer (see Resources) if you notice an error code on the display and the "Call Dealer for Service" light flashes.
Turn the control dial to "Off" and turn off the water supply if the yellow "Change Water Panel" light flashes. Lift the front panel off of the humidifier. Slide out the water panel. Insert a new water panel. Replace the front cover. Turn the control dial to "Test/Reset" until the "Humidifier On" light flashes. If you feel uncomfortable changing the water panel, contact a heating contractor.
Tips & Warnings
Purchase replacement water panels through your Aprilaire dealer or a heating contractor.
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. Sincerely,
Brett Phillips Technical Support Research Products Corporation
unless the humidty in your home is higher then 35%. if it is then the humidifier would not run. try turning it up higher and see if it comes on. Do you hear a click in the humidistat? as you turn up the dail when you hear the click is when the humidifier should come on. Also remember your furnace must be running for the humidifier to come on. if you hear the click and the humidifier fan comes on but no water, you may have a clogged inline filter located in the solinoid valve or a bad soliniod. all parts for your humifier can be purchased from www.aprilaire.com
Slant/Fin has sold the humidifier and PC-55
air purifier business to KAZ USA Inc.
If you need replacement parts, repairs, or have any questions
regarding the products, please contact them at:
KAZ, Consumer Relations Dept.
250 Turnpike rd., Southborough, MA 01772
also worth a look is:
seems to be best forum for humidifier stuff