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C8302 (bizhub 4750i/4050i)
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Contents
| Trouble type | C8302: DF cooling fan trouble |
| Rank | B |
| Trouble detection condition | The lock signal continues to detect H during a given time while the DF cooling fan (FM4) is spinning. |
| Trouble isolation | DF |
| Relevant electrical parts | -DF cooling fan (FM4) -DF control board (DFCB) |
Procedure
- Check the connector between FM4-relay CN112-DFCB CN4 for proper connection and correct as necessary.
- Check the fan for possible overload and correct as necessary.
- FM4 load check
- Check code: 60
- Multi code: 113
- Control signal: DFCB CN4-5 (REM), DFCB CN4-7 (LOCK)
- Location of electrical component: 22-X
- Replace FM4. (Part# 9J06M10000)
- Replace DFCB. (Part# A93EH00901)