8 Troubleshooting
69 R-220 Pro Continuous Operation Manual, Version A
8 Troubleshooting
This chapter helps to resume operation after a problem has occurred with the instrument which does
not require special technical training. It lists possible occurrences, their probable cause and suggests
how to remedy the problem.
The troubleshooting table below lists possible malfunctions and errors of the instrument. The operator
is enabled to correct some of those problems or errors by him/herself. For this, appropriate corrective
measures are listed in the column “Remedy”.
8.1 Resetting the over-temperature protection
For safety reasons (e.g. if no heating medium is in the bath) the over-temperature protection mechani-
cally cuts o the heating current at temperatures above 205 °C. The overtemperature protection is
located at the heating element distribution box.
• Switch o the Rotavapor
®
and wait some minutes for the heating elements to cool down after the
mechanism has been activated.
• Check for correct level of the heating transfer medium and take corrective actions if necessary!
• Push in the reset button by hand.
• Switch on the Rotavapor
®
and perform a functional test of the heating.
➡ If the overtemperature problem still exists call for service!
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