Büchi Labortechnik AG
Help with faults | 10
Operation Manual Rotavapor® R-250 Pro
53/78
Error message
Possible cause
Solution
E01
The bath temperature sen-
sor is not connected.
u
Switch off the instrument.
u
Wait until the heating bath
temperature is less than 40 °C.
u
Start the instrument again.
u
Contact BUCHI Customer
Service.
The bath temperature sen-
sor is defective.
E02
The lift motor is defective.
u
Switch off the instrument.
u
Check for causes of the
blocking and remove.
u
Contact BUCHI Customer
Service.
The lift motor is blocked.
E03
The rotary drive defective.
u
Switch off the instrument.
u
Rotate evaporating flask
manually.
u
Check for causes of the
blocking and remove.
u
Contact BUCHI Customer
Service.
The rotary drive is blocked.
E04
The battery voltage is too
low.
u
Switch on the instrument.
u
Wait eight hours.
ð
The batteries are recharged.
u
Contact BUCHI Customer
Service.
The PB battery is weak.
The PB battery is defective.
E05
Hardware malfunction.
u
Start the instrument again.
u
Contact BUCHI Customer
Service.
E06
Short circuit at the aeration
valve.
u
Disconnect the aeration valve.
u
Start the instrument again.
u
Replace the aeration valve.
u
Contact BUCHI Customer
Service.
E07
Short circuit at the cooling
water valve.
u
Disconnect the cooling water
valve.
u
Start the instrument again.
u
Replace the cooling water
valve.
u
