C5351 (bizhub 554e/454e)

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Contents

Trouble typePower supply cooling fan motor’s failure to turn
Trouble codeC5351
RankB
Detection timingThe fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Trouble isolation
Relevant electrical parts• Power supply cooling fan (FM1)
• Printer control board (PRCB)

 (2)Procedure

StepActionControl signalLocation of electrical components
1Check the connector between FM1-relay CN26-PRCB CN18 for proper connection and correct as necessary.
2Check the fan for possible overload and correct as necessary.
3FM1 operation checkPRCB CN18-13 (REM)PRCB CN18-15 (LOCK)7-C
4Replace FM1 (Part# 4139M10000)
5PRCB ICP2 conduction check
6Replace PRCB (554e Part# A61EH00101 / 454e Part# A61DH00101)

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

K.3.10.4 (Link to the Field Service Manual)