Troubleshooting Guide - Kärcher HDS 1000 De Weed Bedienungsanleitung

DANGER
Acid danger
Risk of acid burns
Wear safety goggles and protective gloves.
Execution:
According to legal regulations, only approved boiler sol-
vents with a test certificate may be used for removing
deposits.
● RM 101 (order number 6.295-398.0)
1. Fill a 20 litre container with 15 litres of water.
2. Add 1 litre of scale solvent.
3. Connect the water hose directly to the pump head
and hang the free end into the container.
4. Place the connected spray lance in the container
without a nozzle.
5. Start the motor according to the operating instruc-
tions of the motor manufacturer.
6. Open the high-pressure gun and do not close it
again during descaling.
7. Set the power switch to a work temperature of
40 °C.
8. Let the device run until the work temperature is
reached.
9. Switch the device off and allow it to stand for 20 min-
utes. The high-pressure gun must remain open.
10. Then pump the device empty.
Note
For the purposes of corrosion protection and neutralis-
ing acid residues, we recommend then pumping an al-
kaline solution (e.g. RM 81) through the device via the
detergent container.

Troubleshooting guide

DANGER
Danger due to the device inadvertently starting up
Risk of injury
Switch off the device and cut off the fuel supply before
doing any work on the device.
CAUTION
Risk of burns from hot surfaces
Risk of injury
Allow the device to cool down prior to all work on the de-
vice.
The fuel indicator light lights up
Fuel tank empty
1. Refuel the fuel tank.
The liquid softener indicator light lights up
Liquid softener container empty (for technical reasons
there is always something left in the container)
1. Fill up the liquid softener container.
Electrodes in the container dirty
1. Clean the electrodes.
Device not running
Observe the information in the operating instructions of
the motor manufacturer!
Fuel tank empty
1. Top up the fuel tank.
Device not building up pressure
Motor operating speed too low
1. Check the operating speed of the motor (see techni-
cal data).
Nozzle clogged/washed out
1. Clean or replace the high-pressure nozzle.
Clean the sieve in the water connection
1. Clean the sieve.
The filter in the water shortage safeguard is dirty
1. Clean the sieve.
22
Water supply volume too low
1. Check the water supply volume (see "Technical da-
ta").
Supply line to the pump is leaking or clogged
1. Check all supply lines to the pump.
Vent air from the system/pump
1. Set the detergent dosing valve to "0".
2. Open the water inlet.
3. Start the motor according to the operating instruc-
tions of the motor manufacturer.
4. Unscrew the nozzle to vent the device and let the
device run until the water emerges without bubbles.
5. Switch the device off and screw the nozzle on again.
Device is leaking, water is dripping from the bottom
of the device
Pump leaking
1. If there is a significant leak, have the device
checked by Customer Service.
Note
3 drops/minute are permitted.
High-pressure pump knocking
Supply lines to the pump are leaking
1. Check all supply lines to the pump.
Vent air from the system/pump
1. Set the detergent dosing valve to "0".
2. Open the water inlet.
3. Start the motor according to the operating instruc-
tions of the motor manufacturer.
4. Unscrew the nozzle to vent the device and let the
device run until the water emerges without bubbles.
5. Switch the device off and screw the nozzle on again.
The device does not suck in any detergent
Detergent suction hose with filter leaking or blocked
1. Check/clean the detergent suction hose with filter.
Check valve in the detergent suction hose connection is
stuck
1. Clean/replace the check valve in the detergent suc-
tion hose connection.
Detergent dosing valve is closed or leaking / clogged
1. Open or check/clean the detergent dosing valve.
The pressure relief valve opens / closes continu-
ously when the high-pressure gun is open
Nozzle clogged
1. Clean the nozzle.
Device is scaled
1. Descale the device.
The filter in the water shortage safeguard is dirty
1. Clean the sieve.
Pressure relief valve defective
1. Have the pressure relief valve replaced (customer
service).
Burner not igniting
Fuel tank empty
1. Refuel the fuel tank.
Water shortage
1. Check the water connection and the supply lines.
2. Clean the sieve in the water shortage safeguard.
Fuel filter dirty
1. Change the fuel filter.
No ignition spark
1. If no ignition spark is visible through the sight glass
during operation, have the device checked by Cus-
tomer Service.
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