Service
Edition: 02
2 - 4
accuSpin
1R
17.11.03 He/Ha
Trouble Shooting (continued)
Error
Indication
Error Cause
Possible Error
Source
Corrective Procedure
Leads to lid switches
interrupted or a
defective lid switch
Check leads and connectors to micro switch, in
case of a faulty micro switch, replace lid lock
device completely
Leads to motor over-
temperature switch
are interrupted
Check the motor over-temperature switch and
leads for continuity, replace faulty parts (motor)
„OPEn“
appears in
speed
display by
supposed
closed lid
15V low voltage
supply for
frequency
converter via the
lid switches and
motor over-
temperature
switch is
interrupted
at standstill
15V low voltage
supply on the main
board is defective
Replace the main board
Rotor not
symmetrically loaded
Open lid, check rotor loading, close lid again
and restart
Base is not sturdy
enough and comes
into vibrations
Change or reinforce the base (table, lorry with
lockable wheels, etc.)
Trunnions are not
greased
Grease the trunnions
Rotor itself has
imbalance
Rotor must no longer be used, send back to
factory
Imbalance run
Rotor fixing or drive
shaft is damaged
Centrifuge must no longer be used, replace
nut or drive
Leads to imbalance
switch are
interrupted
Check leads with ohmmeter and replace if
faulty
Faulty imbalance
switch
Check the calibration of the imbalance switch
"bAL"
message
alternates
with speed
values
Signal fault
Faulty imbalance
circuit component
Replace the main board
Imbalance switch
Check the imbalance switch adjustment
imbalance
but
no
“bAL“
message
No
imbalance
cut-off
Circuits of main
board
Replace the main board
