Friedrich Kuhl KCQ06A10A, Service & Parts Manual

Page: 57 / 78

57 PB
COMPONENT TESTING
Replace the Electronic Control Board
Replace the User Interface
1.Unplug the Unit
2. Remove the Front Cover. (Refer to Routine Maintenance, Figure 401)
3. Remove the 4 corner screws from the rear of the user interface.
4. Inspect ribbon cable for obvious signs of damage.
5. If ribbon cable is damaged, or damage is suspected, disconnect cable from User Interface and Control Board.
6. Paying careful attention to the ribbon cable routing, remove the old cable and replace with a new ribbon cable.
7. Connect ribbon cable to the power board and user interface as required.
8. Install new UI using the 4 screws.
9. Plug in the unit and verify control operation.(Refer to Operation Section)
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation. Extreme care must be used, if it
becomes necessary to work on equipment with
power applied.
Failure to do so could result in serious injury or
death.
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation. Extreme care must be used, if it
becomes necessary to work on equipment with
power applied.
Failure to do so could result in serious injury or
death.
1. Unplug the unit
2. Remove the Front Cover (refer to Routine Maintenance, Figure 401)
3. Remove the unit from the sleeve.(Refer to Figure 502)
4. Remove the discharge sensor (take note of the routing for reinstallation).
5. If necessary, cut wire ties and remove one (1) screw electronic holder to create slack in wiring.
6. Remove the four (4) circuit Board pins using needle nose pliers or other suitable tool.
7. Install the control board using four(4) new circuit board pins.
8.Reinstall the control board panel, secure wiring as required.
9. Install the Front Cover (refer to Routine Maintenance, Figure 401
10. Plug in the unit and test the unit for proper operation. Refer to operation section.