A control panel or display panel might be failing.
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 |
| 8204-E8A | 42R5505 | Control panel | Un-P2-D1 | |
| 28D4 | 9406-MMA, 9117-MMA | 39J3272 | Control panel | Un-D1 |
| 0595, 5095, 7311-D20 | 39J3087 | Control panel | Un-L1 | |
| 247B | 5094 | 39J4611 | I/O control panel | Un-NB1 |