10 | Help with faults
Büchi Labortechnik AG
108/118
Operation Manual Lyovapor™ L-300/L-300 Pro
Error
message
Possible cause
Solution
5275
Pressure of 500 mbar cannot be
reached within 30s.
u
Resolve any leaks.
5278
Pressure increases above level of
1.5 mbar during leak test.
u
Resolve any leaks.
u
Clean and dry condenser chamber.
u
Clean O-rings.
5279
Leak test result above allowed
limit.
u
Resolve any leaks.
u
Clean and dry condenser chamber.
u
Clean drain valve with water.
u
Clean O-rings.
5285
Sensor is disconnected.
u
Check for cable breakage or sensor
damage.
5295
Sensor is disconnected.
u
Check for cable breakage or sensor
damage.
5380
Cooling of new ice condenser
side cannot be completed within
20 min.
u
Use less sample.
u
Add new sample later.
u
Initiate a shutdown. Defrost the ice
condenser manually.
5381
Preparation of vacuum in new
ice condenser cannot be done
within 30 min.
u
Use less sample.
u
Add new sample later.
u
Check vacuum pump performance
in vacuum test.
u
Check for leakage such as in drain
valve.
u
Stop the process and check for
leakage.
5441
Level sensor attached to 'Defrost
water' socket and to fresh water
canister is disconnected during a
running process.
u
Attach the sensor to the
instrument.
5442
Level sensor attached to 'Waste
water' socket and to waste water
canister is disconnected during a
running process.
u
Attach the sensor to the
instrument.
5471
Low fresh water level.
u
Fill water in the water tank.
5472
High water level in waste canis-
ter.
u
Empty waste water canister.
5473
Fresh water canister is empty.
u
Fill water in the water tank.
u
Confirm the message.
u
Prime pump using a syringe or
wash bottle filled with water.
Air bubbles in the fresh water
hose.
