Troubleshooting
Z33119_1_003 41
No Problem Status LED Remote
LED
Cause Solution
7 BCU not visible
in TopSpin in
spite the BCU is
connected with
BSVT
irrelevant Green • TopSpin failure • Plug out and then plug in the communication cable.
• Reboot edte or TopSpin.
8 BCU not visible
in TopSpin in
spite the BCU is
connected with
BSVT
irrelevant Off • Communication cable
broken
• Exchange the communication cable (Z117511).
9 BCU does not
respond to
command of
TopSpin
irrelevant Green • Rotary switch in a manual
mode
• Turn rotary switch to position remote.
10 BCU does not
start in spite
rotary switch is
on remote and
sample heater is
on (BVT)
Off Red • No switch signal (5V) from
the BVT
• Plug in the communication cable from the BVT into the D-
Sub 15 socket of the BCU.
• Exchange the communication cable (Z118350)
11 BCU shuts off
after some time
of operation
Red irrelevant • BCU overheats • Check the wall clearance (min 30 cm) to the inlet and / or
outlet grid of the BCU.
• Clean the dust filter inside the BCU (see Maintenance)
• Check if the fan is working -> Repair kit for the BCU I:
Z129903 (230 V). Z129904 (115 V).
• Service case: contact service.
12 Noise and / or
vibrations from
BCU
irrelevant irrelevant • Transport lock has not been
removed.
• Fan defective (BCU I)
• Transport damage
• Unscrew and remove transport lock.
• Repair kit for BCU I: Z129903 (230 V). Z129904 (115 V).
• Service case: contact service.