Buchi Rotavapor R-100 - Help with Faults; Troubleshooting Guide

8 | Help with faults BÜCHI Labortechnik AG
42/60 Operation Manual Rotavapor® R-100
8 Help with faults
8.1 Faults, possible causes and remedies
Fault Possible cause Remedy
Device does not
work
Device is not connected to
power supply
u Check power supply (see
Chapter5.6 "Electrical con-
nections", page25).
Fuse blown u Replace fuse (see Chap-
ter8.2.2 "Replacing the
fuse", page45).
u If fault recurs, contact
BUCHI Customer Service.
Heating bath
fails to heat up
Device is not connected to
power supply
u Check power supply (see
Chapter5.6 "Electrical con-
nections", page25).
High temperature cut-out has
tripped
u Reset the overheat safety
cut-out (see Chapter8.2.1
"Resetting overheat safety
cut-out", page44).
Fuse blown u Replace fuse (see Chap-
ter8.2.2 "Replacing the
fuse", page45).
u If fault recurs, contact
BUCHI Customer Service.
System leaking Ground glass joints not greased u Grease ground glass joints.
Tubing leaking u Replace tubing (see Chap-
ter5.5 "Connecting the vac-
uum and cooling media tub-
ing", page24).
Seal defective u Replace seal (see Chap-
ter7.3 "Checking seals",
page40).
Vacuum is not
achieved
Back-evaporation from the re-
ceiving flask
u Empty the receiving flask
(see Chapter6.3.2 "Remov-
ing the receiving flask",
page38).
Temperature difference be-
tween evaporating flask and
condenser less than 20°C
u Increase cooling (see Chap-
ter6.2.2 "Adjusting distilla-
tion conditions", page34).
System leaking u Check system for leaks (see
Chapter7.2 "Checking the
system for leaks", page39).
Water pressure of glass filter
pump too low
u Increase water flow (see
pump operating instruc-
tions).
Vacuum pump too weak u Use suitably dimensioned
vacuum pump.