BUCHI Rotavapo R-250 - Manual (Page 25)

25
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