Preferred
TM
Model PF845411/PF845412
I n s t a l l a t i o n , O p e r a t i o n , & M a i n t e n a n c e M a n u a l
9
Preferred Products
Figure 12
Figure 13
Figure 14
there is no call for humidity.
2. Unplug the humidifier in order to remove power before
servicing the unit.
3. Close the water supply valve so that no water may flow to
the humidifier during servicing.
4. Remove the screw that secures the wiring access cover.
See Figure 11.
5. Open the access cover and remove the screw on the
right side of the opening that holds the motor dome to the
base. See Figure 12.
6. With the screws removed, unplug the wiring from the mo-
tor to the circuit board (if equipped) or disconnect the 3
wire connector.
7. Lift the entire dome from the base of the unit by pulling
the bottom of the dome away from the base and then
lifting it off of the base. See Figure 13. If you discon-
nected the motor leads correctly, the motor dome should
be free from the base and you can remove it completely.
Do not hang the dome from the motor wires as damage
can result.
8. To remove the evaporator pad, push the retaining clips
and pull the top pad retainer out from the base. The
retainer and pad will come out together. The drain pan
stays inside the unit. See Figure 14.
9. Reassemble the humidifier.
10. If required, reset the service timer (RED LED) by press-
ing the reset button on the circuit board (if equipped) for
three seconds. PF845412 units with water saving con-
trols include a circuit board.
Figure 11