C8302 (bizhub 368/308)

Contents

Trouble type	C8302: Cooling fan trouble (When DF-629 or DF-704 is installed)
Rank	B
Trouble detection condition	<When DF-629 is installed> • The lock signal continues to detect H during a given time while the DF cooling fan motor (FM1) is spinning. • The lock signal continues to detect L during a given time while the DF cooling fan motor (FM1) is during halts.
	<When DF-704 is installed> • The lock signal continues to detect H during a given time while the DF cooling fan motor (FM1) is spinning. • The lock signal continues to detect L during a given time while the DF cooling fan motor (FM1) is during halts.
Trouble isolation	–
Relevant electrical parts	<When DF-629 is installed> • DF cooling fan motor (FM1) • DF control board (DFCB)
	<When DF-704 is installed> • DF cooling fan motor (FM1) • DF control board (DFCB)

 Procedure

 When DF-629 is installed

1. Check the connector between FM1-DFCB J16 for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM1 operation check
   • Control signal: DFCB J16-3 (ON)
   • Location of electrical component: DF-629 3-B
4. Replace FM1. (Part# N/A)
5. Replace DFCB. (Part# A87RPP1700)

NOTICE

• Link to the wiring diagram (DF-629)

 When DF-704 is installed

1. Check the connector between FM1-DFCB J16 for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM1 operation check
   • Control signal: DFCB J16-3 (ON)
   • Location of electrical component: DF-704 7-G
4. Replace FM1. (Part# A143PP0200)
5. Replace DFCB. (Part# A85GPP0M00)

NOTICE

• Link to the wiring diagram (DF-704)

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

K.3.20.3 (Link to the Field Service Manual)