lbx WB-S, User Manual

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15
8. General faults and troubleshooting
Failure phenomenon Fault analysis Troubleshooting
Equipment is ON but the
display is not.
Power supply is not connected Check if the power outlet has power
The power plug is not
plugged in Check the contact between the power
plug and the socket
The power switch is not on
Turn on the power switch on the right
side of the instrument
Damage of the fuse on the
box Replacement of a power fuse with the
same specification
Sharp drop in the water
level in the sink
Continuous high temperature
operation causes rapid
evaporation
Refill the water tank in time before too
much water evaporates
Drain valve leak Repair or replace the drain valve
Water tank seepage Notify the factory to get the it repaired
Instability of the shaking
plate
The instrument is not stable
Adjust the foot of the instrument to
stabilize the instrument
External object at the bottom
of the plate
Remove the object
Control circuit fault Notify the factory to get it repaired
The measured temperature
is higher than the set
temperature and the system
enters the high-temperature
alarm state.
The water level is too low
Increase the water level so that it is
higher than the heating tube and the
sensor
The instrument has not yet
entered the state of constant
temperature
Wait for a moment and check again
Temporary high-temperature
phenomenon
Correct the temperature setting
Heater anomaly Notify the factory to get it repaired
The measured temperature
is lower than the set
temperature and the system
enters the low-temperature
alarm state.
The lid of the is not properly
closed and heat is constantly
exuding the instrument
Close the lid properly and do not open
it too frequently.
The instrument has not yet
entered the state of constant
temperature
Wait for a moment and check again
Heater anomaly Notify the factory to get it repaired
The noise of the instrument is
too loud
The instrument is not placed
properly Adjust the foot of the instrument to
stabilize the instrument
The flask clamp fixing screw is
loose Remove the flask and the plate and
tighten the screw
Shake plate loosening
Tighten the screws at the four corners of
the plate
Bump on the bottom of the
plate due to an object
Remove the object
Mechanical failure Notify the factory to get it repaired