C8302 (bizhub 958/808)

Contents

Trouble type	C8302: Cooling fan motor’s failure
Rank	B
Trouble detection condition	The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
Trouble isolation	DF
Relevant electrical parts	• Cooling fan motor (FM) • DF control board (DFCB)

 Procedure

1. Check the connector between FM-relay CN115-DFCB CN19 for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM operation check
   • Control signal: DFCB CN19-3 (LOCK)
   • Location of electrical component: DF 4-C
4. Replace FM. (Part# 4556M10000)
5. DFCB ICP10 conduction check.
6. Replace DFCB. (Part# A782H0010A)

NOTICE

• Link to the wiring diagram (Dual scan document feeder)

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

K.3.13.5 (Link to the Field Service Manual)