Buchi Rotavapor R-3000 - Troubleshooting Common Malfunctions

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BÜCHI Rotavapor R-3000
5.5 Malfunctions
Electrical block diagram
Malfunction Possible cause Remedy
Rotavapor does Power switch off Switch on Rotavapor
not work
Rotavapor not connected to Plug in power cord
main power supply
Defective or blown fuse Call Customer Service
Bath does not Power switch off Switch on Rotavapor
heat up
Heating element not plugged in correctly Plug in heating element correctly (4.4 Heating bath)
Heating controller off Switch on heater
Overtemperature cut-out has Allow heater to cool, then reset the overtemperaure
switched off cut-out (4.4 Heating bath)
Heater defective Call Customer Service
Flask does Rotation set to 0 Turn rotation knob clockwise, until rotation starts
not rotate Motor defective Call Customer Service
System has a Ground-glass joints are not greased Grease ground-glass joints
vacuum leak
Threaded couplings poorly screwed Check threaded couplings
or defective
Leaky (brittle) hoses Replace hoses
Seals wrongly installed Check sealing system
Seal defective Replace seal
Table 4: Malfunctions
Figure 13: Block diagram
Main switch
Overtemp.
switch
Thermostat
Motor control
Potentiometer
Hallsensor
Motor
Heater
5 Operationg the Rotavapor
Mains