D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
2-25
Kaaaw sk
2.7.3 HEAT EXCHANGE FAN (FOR D71/74/77 CONTROLLER)
Heat exchange fan is installed on the left side of the controller cover.
1. Turn OFF the control power.
2. Remove the controller cover.
3. Remove the power harness from the bands which fix the harness.
4. Remove the four screws fixing the fan, and then remove the fan.
5. Attach the new fan with the four screws. Be sure to reattach the fan correctly.
6. Restore the power harness removed in step 3 with the bands.
7. Restore the controller cover.
Heat exchange fan Power harness Band