LAUNCH KWB-421 Wheel Balancer User’s Manual
12
Error
Descriptions
Reasons
Solutions
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.
1. The power board is damaged.
2. There is a disturb.
1. Change a power board.
2. Turn off the machine then reset it.
The balanced value is
unstable. It is very hard
to get the value “00”.
1. The sensor is wet or it is damaged.
2. The program is disordered.
1. Readjust it, drying it and re-do
self-calibration or change a sensor.
2. Re-do self-calibration.
The balancer can not
brake when the value
displayed.
1. The brake system is damaged.
2. There is a disturb.
1.Change a power board.
2.Reset the machine.
There is a difference
value over 10g when the
wheel is removed and
installed.
1. The inner bore of the wheel is not
clear or neat.
2. The adaptor is not well installed.
1.Change a wheel
2. Check the installed surface.
Err8 displayed when
self-calibration is done.
See 5.1
Imbalance value
exceeds hundreds of
grams
1. These three EMS memory
parameters are disordered.
2. The error value of the wheel is too
big.
1. Readjust the value to the standard
value in term of the manual.
2.Change a wheel
Contact the professional for the problems could not be resolved by above methods.
