The problem is with a power supply fan, replace the power supply. 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 |
| 167 | 8204-E8A | 44V3559 | Power supply (ac) | Un-E1 |
| 167 | 8204-E8A | 42R6607 | Power supply (dc) | Un-E1 |
| 167 | 9117-MMA | 39J2779 | Power supply | Un-E1 |