Launch KWB-421 User Manual page 13

LAUNCH
Error
Descriptions
The electric machine
can stop over ten
seconds after the
"START" key is pressed
and there is a reading
displayed on the
window. But there is no
brake signal.
The balanced value is
unstable. It is very hard
to get the value "00".
The balancer can not
brake when the value
displayed.
There is a difference
value over 10g when the
wheel is removed and
installed.
Err8 displayed when
self-calibration is done.
Imbalance value
exceeds hundreds of
grams
Contact the professional for the problems could not be resolved by above methods.
KWB-421 Wheel Balancer User's Manual
Reasons
1. The power board is damaged.
2. There is a disturb.
1. The sensor is wet or it is damaged.
2. The program is disordered.
1. The brake system is damaged.
2. There is a disturb.
1. The inner bore of the wheel is not
clear or neat.
2. The adaptor is not well installed.
See 5.1
1. These three EMS memory
parameters are disordered.
2. The error value of the wheel is too
big.
12
Solutions
1. Change a power board.
2. Turn off the machine then reset it.
1. Readjust it, drying it and re-do
self-calibration or change a sensor.
2. Re-do self-calibration.
1.Change a power board.
2.Reset the machine.
1.Change a wheel
2. Check the installed surface.
1. Readjust the value to the standard
value in term of the manual.
2.Change a wheel