How do I turn on (or off) my humidifier?

  • Locate your humidistat.
    Your humidistat may be located near your thermostat or mounted at the furnace on the plenum (sheet metal box).
  • Set humidistat:
    Set to [OFF] OR [0]
    Move the humidistat dial to a "higher" setting until you hear a "click." This click indicates the current level of humidity the humidistat is sensing in your system.
  • Set bypass damper (if equipped).
    You may see the works open/closed, summer/winter, or it may not be labeled at all.
    Set damper lever perpendicular to duct to "close" or set to "summer" setting.
    Set damper lever parallel to duct to "open" or set to "winter" setting.

Important Reminder: Please read the section "Should I changed my water panel?

How do I know if my humidifier is working?

Typically, most humidifiers are installed to run when the furnace is running in "heat" mode. With this in mind, you should be able to see water draining from the humidifier while the heat is running or for a short time after the heat shuts off.