Labnet Spectrafuge 24D Digital Microcentrifuge User Manual

Page 10

6. Troubleshooting Guide

Please refer to this guide before calling for service.

Centrifuge will not start

Possible

reason:

power

supply

Solution:

Check

that

power is being supplied to the outlet

Check that the power cord is plugged into both

the wall outlet and the back of the centrifuge

Check

that

power

cord

not

damaged

Possible

reason:

Blown

fuse

Solution:

Check fuse and replace if necessary

Lid lock will not release

Possible

reason:

Defective

lid

lock

Solution:

Open

manually

and

have

unit

serviced

Possible reason:

No power from PC board

Solution:

Call

for

service

Possible reason:

Lid lock is jammed

Solution:

Call

for

service

Possible reason:

Centrifuge is not receiving power

Solution:

See

“Centrifuge

will

not

start”

Centrifuge cannot be started, although power is on

Possible reason:

Lid not closed correctly

Solution

lid

correctly

Possible reason:

No speed or time has been selected

Solution:

Set

speed

and/or

time

bAL: Error Message Indicates imbalance

Possible reason:

Tubes not inserted symmetrically in rotor holes

Solution:

Load

tubes

symetically

(see

Section

3.4

the

rotor

Possible reason:

Sample liquid in tubes not balanced

Solution:

Make sure the same volume of liquid is in each

tube

Possible

reason:

Defective

improperly adjusted balance sensor

Solution:

Call

service

Lid: (Error message) Lid not closed

Possible reason:

Lid not closed completely

Solution:

lid

Possible reason:

Lid lock or sensor defective

Solution:

Call

service

Other Error Messages Er on Display

Solution: Press time or speed knob to clear error

Call

service