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New Brunswick Scientific
User’s Guide
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)
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.
On/Off switch is not working: call for service.
If you recently replaced a fuse, it may not have been seated
properly: remove and reinstall the fuse carefully.
Defective main board: call for service
Defective display controller board: call for service.
Jammed shaking mechanism: 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 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.
Load out of balance: unload all contents, then reload.
Operating noise
Loose component(s) in platform, subplatform and/or drive
assembly: call for service.
