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Blower Activation Test
• Deactivate HVAC system or heat pump.
• Turn knob to OFF.
• Set switch to Blower Activation ON.
• Turn the knob to Test/Reset. The Humidifier On light will
illuminate. After 5 seconds, the green “Humidifier On” light
will blink, indicating a system reset.
• If the Humidifier Control and humidifier are set up properly,
the solenoid valve should click and the HVAC blower
should activate.
• If the humidifier does not activate with the Humidifier
Control in the “Test/Reset” position, refer to the
troubleshooting guide.
• If HVAC blower does not activate with the Humidifier
Control in the "Test/Reset" position, refer to the
troubleshooting guide.
8. Setting the Humidifier Control:
• If the home is occupied, set the Humidifier Control to
“Normal”. (For Manual Mode, set to 35%.)
• If the home is vacant, set the Humidifier Control to “OFF”.
• If in Manual Mode and system is installed during cooling
season, set the Humidifier Control to “OFF”.
9. Instruct the homeowner to refer to the Aprilaire Owner’s
Manual for the initial adjustment period.
10.Make sure the red “Call Dealer for Service” light is not
flashing. If the red “Call Dealer for Service” light is flashing,
refer to the troubleshooting guide.
1. Replace the cover by snapping it into the Humidifier Control
base. Also replace the knob onto the Control.
2. Turn Blower Activation switch to OFF
3. Restore power to the HVAC system.
4. Activate the HVAC system or heat pump (Fan or Heat).
5. Once the blower is operating, rotate the knob of the
Humidifier Control Clockwise to the “Test/Reset” position.
When the knob is set in the “Test/Reset” position, the green
“Humidifier On” light will illuminate. After 5 seconds, the
green “Humidifier On” light will blink, indicating a system
reset.
6. If the Humidifier Control and humidifier are set up properly,
you should hear the solenoid valve click into the open
position. On the Model 800 Steam Humidifier, the “Steam”
light will illuminate green. In the “Test/Reset” position, the
humidifier will operate for 1 minute. If the Humidifier Control
is left in the “Test/Reset” position for more than 1 minute,
the “H” terminals will open (closing the solenoid valve), and
the knob and display backlights will flash, indicating that the
Humidifier Control is still in the “Test/Reset” position.
7. If the humidifier does not activate with the Humidifier Control
in the “Test/Reset” position, refer to the troubleshooting
guide.
SYSTEM CHECKOUT