Olivetti d-Color MF2552 plus Service Manual page 341

Code Contents
6930 IH related cooling fan motor
error
The alarm signal was
detected for 5 seconds contin-
uously during operation.
6950 IH CPU communication
error
A communication error is
detected 3 times in succes-
sion.
Y116141-8
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Container / IH coil fan motor and relay
connector * and engine PWB(YC18)
*:Insertion of the above-mentioned relay
connector is checked.
IH fan motor and engine PWB(YC19)
Defective cooling Replace the container / IH coil fan motor or
fan motor. the IH fan motor.
Defective PWB. Replace the engine PWB and check for cor-
rect operation (see page 1-5-33).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector.
Defective PWB. Replace the IH PWB or the engine PWB and
check for correct operation (see page 1-5-
51, 1-5-33).
1-4-43
Check procedures/
corrective measures
Fan duct
2NP
Relay connector
Service Manual