Karcher HDS 1000 De - Manual (Page 30)

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– Fuel tank empty
 Refill.
– Liquid softener tank is empty, due to
technical reasons a remainder stays in
the tank.
 Refill.
– Electrodes in the tank are dirty
 Clean the electrodes.
Follow operating instructions of the engine
manufacturer!
– Fuel tank empty.
 Refill.
– HDS 1000 BE: Spark plug (motor) is
dirty/ defective
 Clean or replace the spark plug.
– Safety thermostat at the high pressure
pump has switched off the appliance af-
ter long period of cycle operation.
 Allow the appliance to cool down; then
restart it. Refer section "Interrupting op-
eration".
– Operating speed of the engine is too
low
 Check operating speed of the engine
(refer to technical data).
– HDS 1000 BE: Spark plug (motor) is
dirty/ defective
 Clean or replace the spark plug.
– Nozzle is blocked/ washed out
 Clean/ replace nozzle.
– Sieve in the water connection is dirty
 Clean sieve.
– Amount of water supply is too low.
 Check water supply level (refer to tech-
nical data).
– Pipe inlets to pump are leaky or blocked
 Check all inlet pipes to the pump.
– Air within the system
Vent pump:

Set dosing value for detergent to "0".
 Open the water supply.
 Start the engine according to the oper-
ating instructions of the engine manu-
facturer.
 To dearate the appliance, unscrew the
nozzle and allow the appliance to run
until the water exits in a bubble-free
state.
 Switch off the appliance and fit the noz-
zle again.
– Pump leaky
Note
3 drops/minute are allowed.

With stronger leak, have device
checked by customer service.
– Inlet pipes to the pump are leaky.
 Check all inlet pipes to the pump.
– Air within the system
Vent pump:

Set dosing value for detergent to "0".
 Open the water supply.
 Start the engine according to the oper-
ating instructions of the engine manu-
facturer.
 To dearate the appliance, unscrew the
nozzle and allow the appliance to run
until the water exits in a bubble-free
state.
 Switch off the appliance and fit the noz-
zle again.
– Detergent suction hose with filter is
leaky or blocked
 Check/ clean detergent suction hose
with filter.
– Backflow valve in the connection of the
detergent suction hose is jammed
Troubleshooting
Fuel indicator lamp glows
Indicator lamp liquid softener glows
Appliance is not running
Device is not building up pressure
High pressure side is leaky
High pressure pump is vibrating
Device is not sucking in detergent
30 EN