User's Manual

37
8. Remove the white
junction board cover
and unplug the fan
power cable from the
junction board.
9. Lift out the fan and
fan and the fan
deflector.
10. Pull the temperature/humidity sensor up
and out.
11. Use a soft brush to clean the white plastic
and gold mesh of the sensor.
12. Remove all debris from inside the shield
and fan and wipe the interior surfaces with
a damp cloth.
13. Remove the screen from the bottom of the
radiation shield. Wipe it clean, as well as
up into the interior of the radiation shield.
Replace the screen.
14. Replace the temperature/humidity sensor.
It fits one way, into the slots on the side.
Route the cable up through the channel
and replace the fan deflector with the
cable channels correctly aligned with the
sensor cable. If a new fan and batteries are
needed, See “24-Hour and Daytime Fans:
Replacing the Fan Motor and Batteries”
on page 40.
15. Replace the fan and plug the fan power
cable back into the junction board. The fan
should start to rotate.
Fan Unit
Fan Deflector
Temp/Hum
Sensor Cable
Channel
Temp/Hum
Sensor Cable
Fan Unit
Fan Power
Cable
Junction Board
Cover (removed)
Junction Board
Temperature/
Humidity
Sensor
Screen