The problem is with the control panel (operator panel). Use the following table to determine the part number for the field replaceable unit (FRU):
| CCIN or FFC | Type and model | Part number | Description | Location code |
| 165 | 8203-E4A, 9407-M15, 9408-M25 | 10N9737 | Control (operator) panel | Un-D1 |
| 165 | 8204-E8A, 9409-M50 | 42R5505 | Control (operator) panel | Un-D1 |
| 165 | 9117-MMA | 39J3272 | Control (operator) panel | Un-D1 |