Karcher Pressure Washer - K 4 WCM Flex eco!Booster

The eco!Booster lance provides 50 percent increased cleaning performance compared to standard Kärcher flat jets, while simultaneously improving water and energy efficiency, making cleaning more effective and sustainable.

It is designed for occasional domestic cleaning tasks on moderate dirt. This includes paths, patios, garden furniture, vehicles, and garden walls or fences.

The pressure washer comes with an 8-meter PremiumFlex high-pressure hose, offering good reach and maneuverability for medium-sized outdoor areas.

The unit includes a detergent suction hose for applying cleaning agents. Detergent itself is not typically included and must be purchased separately.

The integrated water filter should be checked and cleaned regularly. Detach the hose, unscrew the filter, rinse it under running water, and then reinsert it to ensure optimal pump protection.

The Karcher K 4 WCM Flex eco!Booster has an area performance of 30m² per hour.

It is recommended to use only Karcher-approved detergents. Using other brands may not provide optimal cleaning results and could potentially damage the machine.

Check that the power cable is securely plugged in. Ensure the water supply is turned on and connected correctly. Verify that the trigger gun is properly engaged.

Check the water supply connection and ensure the tap is fully open. Clean the water filter and check for blockages in the hose or lance. Ensure the correct lance is selected and properly attached.

Inspect all hose connections and accessory fittings for tightness. Check the O-rings for damage. If leaks persist, contact customer support.

Ensure the detergent suction hose is correctly positioned in the detergent container. Check that the filter on the end of the suction hose is not blocked. Use only Karcher detergents.

The machine may have overheated. Allow it to cool down for a few minutes before restarting. Ensure there are no blockages in the hose or lance that could cause the motor to work excessively hard.