Eppendorf Biological Shakers Innova 44R - Manual (Page 52)

Biological Shakers Innova® 44/44R — Operating manual
52
10 Troubleshooting
10 Troubleshooting
10.1 General troubleshooting
If any problems occur with your shaker, do not attempt to perform any service on the unit.
Unauthorized servicing may void the warranty. Please contact your local Eppendorf Customer
Service Department.
In any correspondence with Eppendorf, please refer to the model number and serial number of
your unit. This information is on the electrical specification plate, located on the rear panel of the
unit, above the power connector. The serial number is also located in the lower right corner panel,
below the chamber door seal.
There are some problems, however, that you can investigate and correct yourself. Refer to the
following Troubleshooting Guide:
Symptoms Probable Causes and Solutions
Shaker does not run.
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—look for Open Door icon on display: close door firmly, making sure
latch is engaged.
Door is closed but Open Door icon is on display: door magnet is not adjusted
correctly; call for service.
On/Off switch is not working: call for service.
Tilt Switch has been triggered. Alarm condition Tilt will be indicated and RPM will be
OFF. Check to ensure the load is evenly distributed and that the shaker is level on a
solid surface. Restart by pressing the START/STOP button.
Fuse(s) burned out: check and replace as needed.
If you recently opened the Service Drawer to replace a fuse, it may not have been
seated properly: reopen and reclose carefully.
Shaking speed has been set to Zero by program running (look for Run icon in
display) or by computer interface: reset shaking speed.
Defective main board: call for service
Defective display controller board: call for service.
Jammed shaking mechanism: call for service
Defective motor: call for service
Drive belt out of alignment or worn: call for service.
Shaker runs slowly and/or no
speed indication.
If you recently opened the Service Drawer to replace a fuse, it may not have been
seated properly: reopen and reclose carefully.
Fuse(s) burned out: check and replace as needed.
Incorrect speed calibration: recalibrate shaking speed.
Defective main board: call for service.
Defective motor: call for service.
Drive belt out of alignment or worn: call for service.
10
Troubleshooting