Name
Date
Designation
Prepared
JF 05.07.13
Service Manual BB 150
Index
Name
Date
Document No.
Page
File
50078923_04_CN
50 079 823
31/ 31
4.8 FAN SYSTEM AND ERRORS
Short description:
DC motor (nominal voltage: 24 V; operating voltage: 12 V) mounted on the sensor
block. Located outside the sample chamber.
The fan speed is adjusted to the various operating modes by pulse package control:
Incubation mode:
Low speed
Decontamination mode:
Maximum speed
The fan runs continuously.
After a mains reset or when the door is closed, the fan runs at maximum speed for 2
sec., even in the incubation mode.
Fan control
Errors in the fan system
Error
code
Faulty function
Inspections and tests
Possible
corrective
actions
-
Fan not rotating.
LED LD1 on the sensor
board must be flashing or lit.
Check the solder
connections.
Replace the
sensor block.
