Instruction Manual

6. Troubleshooting Guide

Please refer to this guide before calling for service.

Centrifuge will not start

Possible reason: No 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 is 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 Close 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 on Loading 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 or improperly adjusted balance sensor

Solution: Call service

Lid: (Error message) Lid not closed

Possible reason: Lid not closed completely

Solution: Close 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