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C4301 (bizhub C759/C659)
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Contents
| Trouble type | C4301: PH cooling fan failure to turn |
| Rank | B |
| Trouble detection condition | The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning. |
| Trouble isolation | – |
| Relevant electrical parts | -PH cooling fan (FM14) -PH relay board (PHRYB) |
Procedure
- Check the connector between FM14-relay CN202-PHRYB CN12 for proper connection and correct as necessary.
- Check the fan for possible overload and correct as necessary.
- FM14 load check
- Check code: 42
- Multi code: 20, 21
- Control signal: PHRYB CN12-4 (DRIVE), PHRYB CN12-5 (LOCK)
- Location of electrical component: 8-B
- Replace FM14. (Part# A03UM15300)
- PHRYB ICP6 conduction check.
- Replace PHRYB. (Part# A8JEH00301)
L.3.11.4 (Link to the Field Service Manual)