Eppendorf New Brunswick Excella E-24 Shaker - Manual (Page 27)

Troubleshooting
New Brunswick ™ Excella ® E-24 Shaker
English (EN)
27
7 Troubleshooting
Symptoms Possible causes Solutions
Shaker does not run • Power cord is not plugged in
and/or power switch is off
 Plug in power cord to working
electrical outlet
 Turn on the power switch
• Lid is open, Lid is indicated on
the display
 Open and reclose the lid firmly
• Recently replaced fuse may
not be seated properly
 Reinstall the fuse carefully
• On/off switch is not working
• Defective main board
• Defective display controller
board
• Jammed shaking mechanism
• Defective motor
• Drive belt out of alignment or
worn
 Call for service
Shaker runs slowly and/or no
speed indication • Incorrect speed calibration  Recalibrate shaking speed (see
Speed calibration on p. 20)
• Defective main board
• Defective motor
• Drive belt out of alignment or
worn
 Call for service
Shaker does not run at set speed • Shaker is overloaded and/or
you are using baffled flasks
 Remove some contents and
balance load
• Defective motor
• Drive belt is out of alignment
or worn
 Call for service
Operating noise • Load out of balance  Unload all contents and reload
• Loose component(s) in
platform, subplatform and/or
drive assembly
 Call for service
Incubator does not reach set
temperature • Heater fuse blown  Replace (see Fuse replacement
on p. 29)
• Ambient temperature too high
or too low
 Cool or heat the room as
needed
• Compressor over-pressure
switch activated
• Defective heater
 Call for service
• Incorrect temperature
indication
 (see Tab. on p. 28)