12
Problem
Cause
Solution
Unit fails to power on
Missing or blown fuse
Check and replace fuse if necessary
If problem persists, please contact your VWR representative for repair.
Unit is excessively noisy
Rattling or ticking sounds may indicate a loose screw
on the tray
Ensure that tray is secured tightly.
If problem persists, please contact your VWR representative for repair.
Unit not shaking at proper speed
-
Perform speed calibration on page 11
If problem persists, please contact your VWR representative for repair.
Unit not heating to proper temperature
-
Perform single point calibration on page 11
If problem persists, please contact your VWR representative for repair.
E1
RTD open or ±1ºC temperature deviation from set-
point (after unit has stabilized)
This error connot be fixed by the end user.
If problem persists, please contact your VWR representative for repair.
E2
RTD shorted or temperature below 0ºC
This error cannot be fixed by the end user.
If problem persists, please contact your VWR representative for repair.
E3
Mechanical obstruction
Drive system failure
Ceased bearing
Drive belt broken
Remove mechanical obstruction.
If problem persists, the reason may be the drive system. Please contact your VWR repre-
sentative for repair.
E4
Improper positioning of load
or
Maximum load exceeded
Ensure the load is evenly distributed and does not exceed the maximum load capacity for
the unit. See “Load Sensing Function” on page 10-11.
Verify load has not exceeded the maximum allowable weight. Reduce load if necessary.
If error code resumes, contact your VWR representative for repair.
E6
Over temperature error
This error cannot be fixed by the end user.
Please contact your VWR representative for repair.
E7
Default sensor Error (5000IR units only)
Error will shut unit off if set temperature is 20°C or below. Unit is still operational with a set
temperatue above 20°C. Error will be indicated every 5 minutes until repaired.
Please contact your VWR representative for repair.
t
roUbleshootIng
To clear error press the standby button
EN
