Troubleshooting; Troubleshooting Without Display; Troubleshooting With Display - Kärcher B80W Service Manual

7

Troubleshooting

7.1

Troubleshooting without display

Fault
Appliance cannot be started
Machine does not move
Insufficient water quantity
Insufficient vacuum performance
Insufficient cleaning result
Brushes do not turn
* Remove screws of the electronics system and tilt the electronics cover with charger downwards
7.2

Troubleshooting with display

Message
Driving lever active!
Raise brush!
Temperature !!!
Gas pedal !!!
Brush overload!
Battery depleted!
Battery depleted!!!
Refill detergent!
Emergency-STOP!
Gas>POTI_ZER_MAX
Remedy
Stand-by, turn key switch to "0", then set it back to "1".
Check fuse F1 *, F2 *, replace if required. *
Check battery; charge it if required.
Check if the parking brake has been triggered.
Check fresh water level, refill tank if necessary.
Check fresh water filter; clean if required.
(See "Maintenance Tasks").
Check hoses for blockages; clean if required.
Clean the seals between dirt water reservoir and cover and check for tightness, replace if
required.
Clean the fluff filter.
Clean the vacuum lips on the vacuum bar, replace if required
Check suction hose for blockages; clean if required.
Check the suction hose for tightness; replace if required.
Check if the cover on the dirt water discharge hose is closed
Check the setting of the vacuum bar.
Set/ adjust contact pressure.
Check the brushes for wear, replace if required.
Use appropriate brush type for the type of dirt.
Set to "Power Clean" with appliances with brush rollers FACT.
Empty the waste container on the BR head.
Reduce contact pressure.
Check if foreign matters block the brushes; remove foreign matter if required.
If over-current switch in the electronics system has been triggered, turn key switch to "0",
then set it back to "1".
Cause
The driving lever is not in the centre position during
switch on.
Roller brush lowered and at a standstill.
Overtemperature in the performance electronics
Driving lever fault during operation.
Max. brush power exceeded for more than 5 sec-
onds.
Battery low voltage not reached for more than 60
seconds.
Battery power less than 18 V.
Detergent container is empty.
Emergency STOP button activated.
Drive control not adjusted properly.
Remedy
Turn off the appliance, move the driving lever to the
centre position and turn on the appliance once
again.
Raise the brush head.
Switch off appliance and let it cool down.
Release the driving lever, switch the appliance off
and back on again. Check the driving lever.
Check/adjust the contact pressure at the brush
head.
Charge battery.
Charge battery.
Install full detergent container.
Release emergency-stop button.
Adjust drive control.
English 5.906-468.0 Rev. 00 (02/09)
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