BUCHI Rotavapo R-250 User Manual
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Rotavapor R-250
5 Operation
5.5 Troubleshooting
Fault Possible
cause
Remedy
Bath is not lifted
No power supply for bath lift,
Contact service department
control
defective
Bath lift defective
Contact service department
Heating does not operate
Over-temperature protection has
Reset over-temperature protection
been
activated
PT-1000 defective (Error E0)
Check PT-1000 in the bath and contact
service
department
Heating does not operate,
1) Switching relay defective or
1) Contact service department
v/VERTEMPv
more than 15°C
switch off via unit, confirm
Heater coils defective
Contact service department
Rotation does not function
Rotary drive defective
Contact service department
Rotary drive overheated
Allow it to cool off and then start it up again
No vapor temperature
Temperature sensor not inserted
Check PT-1000 plug-and-socket connection,
correctly or defective
contact service department
Table 4: Troubleshooting
5.6 Reset of the over-temperature protection
If the heater heats up over 205°C (e.g. if no heating medium
is in the bath), it is cut off by a mechanical overtemperatu-
re protection.The overtemperature protection is reset by
pushing the button under the heating block.
Fig. 5.2: Resetting the over-temperature limiter