BUCHI Rotavapo R-100 - Manual (Page 42)

8 | Help with faults BÜCHI Labortechnik AG
42/60 Operation Manual Rotavapor® R­100
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 Chapter­
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 cut­out has
tripped u Reset the overheat safety
cut­out (see Chapter 8.2.1
"Resetting overheat safety
cut­out", page 44).
Fuse blown u Replace fuse (see Chapter­
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 Chapter­
7.3 "Checking seals", page­
40).
Vacuum is not
achieved Back­evaporation 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 instructions).
Vacuum pump too weak u Use suitably dimensioned
vacuum pump.