8t t – Eppendorf Biological Shakers Excella E-25R User Manual
Page 33
33
New Brunswick Scientific
Operating Manual
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If any problems occur with your shaker, do not attempt to perform any service on the shaker
other than specified in this manual. Unauthorized servicing may void the warranty. Please
contact your local New Brunswick Sales Order Department
In any correspondence with New Brunswick, please refer to the Model Number and Serial
Number of your shaker. This information is on the
ELECTRICAL SPECIFICATION PLATE
,
located on the rear panel of the shaker.
There are some problems, however, that you can investigate and correct yourself. Refer to the
following Troubleshooting Guide:
Symptom(s)
Probable Cause(s) & Solution(s)
No power; display is not on; power cord is not plugged in and/or
power switch is off: plug in power cord (to working electric
outlet), and turn on power switch.
Door is open: close door firmly, making sure latch is engaged.
Door is closed but not completely: door magnet is not adjusted
correctly; call for service.
On/Off switch is not working: call for service.
Fuse(s) burned out: check and replace as needed.
If you recently replaced a fuse, it may not have been seated
properly: remove and reinstall the fuse carefully.
Shaking speed has been set to Zero by program running or by
computer interface: reset shaking speed.
Defective main board: call for service
Defective display controller board: call for service.
Jammed shaking mechanism: check for debris; if necessary,
call for service
Defective motor: call for service
Shaker does not run.
Drive belt out of alignment or worn: call for service.
If you recently replaced a fuse, it may not have been seated
properly: remove and reinstall the fuse carefully.
Incorrect speed calibration: recalibrate shaking speed.
Defective main board: call for service.
Defective tach board: call for service
Defective motor: call for service.
Shaker runs slowly
and/or no speed
indication.
Drive belt is out of alignment or worn: call for service.
Shaker is overloaded and/or you are using baffled flasks:
remove some contents & balance load.
Defective motor: call for service.
Shaker does not run at
set speed.
Drive belt out of alignment or worn: call for service.
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