36
Removing faults
Removing faults
Faults can often be easily and rapidly removed.
Please check with the aid of the table whether you can remove the
fault yourself before calling in the customer service. If any faults occur,
do not continue to sow.
Fault
Cause
Remedy
The device cannot be switched
on
The poles of the supply voltage are
reversed
•
Have the polarity checked.
Power supply interrupted
•
Check the battery connecting
cable
•
Check the terminals on the
battery
•
Check fuses. Where necessa-
ry: Replace the 60 A fuse
•
Connect up the power cable if
the power supply was uncou-
pled
•
Check the voltage; the supply
voltage must be 12-14 V
System failure
Inform the Customer Service
No read out on the display
The contrast regulator is adjusted
wrongly
Make adjustments until the dis-
play text is visible.
Display does not contain any im-
pulse
Start the device from the begin-
ning again
Send the device back to the ma-
nufacturer if the display still
shows nothing after the new start
or the display cannot be changed.
The computer displays unexpec-
ted values
A mobile telephone, radio or radio
antenna is operating too close to
the device
Maintain a minimum separation of
1 metre
Speed is not displayed or is dis-
played too low
Entry of an impulse missing
Enter the number of impulses
Cable on the wheel sensor is de-
fect or the wheel sensor is defect
Check cable and replace if neces-
sary
The device is defect
Inform the Customer Service
