TROUBLESHOOTING

Disconnect the machine from the power source before making any repair.

Symptom

Cause

Solution

 

 

 

 

Motor will not start

On/Off switch is in the “OFF” (O)

Turn switch to the “ON” (I)

 

 

position.

position

 

 

 

 

 

 

Power cord is not plugged in.

Plug in power cord.

 

 

 

 

 

 

Extension cord is too long.

Replace extension cord with either

 

 

Extension cord is not proper gauge.

“a 25 ft. 12/3 gauge cord or a 50

 

 

Extension cord is damaged.

ft. 10/3 gauge cord.

 

 

 

 

 

 

Electrical outlet does not supply

Try a different outlet.

 

 

adequate power.

 

 

 

 

 

 

 

Ground Fault Circuit Interrupter

Reset breaker (power supply) or

 

 

(GFCI) tripped.

GFCI.

 

 

 

 

Unit does not reach high

Diameter of garden hose is too

Replace with a 3/4 inch garden

pressure.

small.

hose.

 

 

 

 

 

 

Water supply is restricted.

Check garden hose for kinks,

 

 

 

leaks and blockage.

 

 

 

 

 

 

Not enough inlet water supply.

Open water source full force.

 

 

 

 

 

 

Water inlet filter is clogged.

Remove filter and rinse out in

 

 

 

warm water.

 

 

 

 

 

 

Quattro Nozzle is in low

Turn Quattro Nozzle to high

 

 

pressure position.

pressure position.

 

 

 

 

 

 

Wash brush is attached.

Attach Quattro Nozzle.

 

 

 

 

Output pressure varies high

Not enough inlet water supply.

Turn water on full force. Check

and low.

 

garden hose for kinks, leaks or

 

 

 

blockage.

 

 

 

 

 

 

Pump is sucking air.

Check that hoses and fittings are

 

 

 

air tight. Turn off machine and

 

 

 

purge pump by squeezing trigger

 

 

 

gun until a steady flow of water

 

 

 

emerges through the nozzle.

 

 

 

 

 

 

Water inlet filter is clogged.

Remove filter and rinse out in

 

 

 

warm water.

 

 

 

 

 

 

Discharge nozzle is obstructed.

Blow out or remove debris with a

 

 

 

fine needle.

 

 

 

 

 

 

Calcified gun, hose or Quattro

Run distilled vinegar through

 

 

Nozzle.

detergent suction tube.

 

 

 

 

11

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Karcher K 3.97 M specifications Troubleshooting, Symptom Cause Solution

K 3.97 M specifications

The Karcher K 3.97 M is a powerful, versatile pressure washer that stands out in the realm of outdoor cleaning equipment. This model is particularly designed for home use, ideal for tackling various cleaning tasks with ease. Its compact and lightweight design makes it easy to maneuver, while its robust build ensures durability and longevity.

One of the standout features of the K 3.97 M is its powerful 1600-watt motor, which delivers a maximum output pressure of 120 bar. This level of pressure is sufficient for a range of cleaning tasks, including washing cars, cleaning patios, and revitalizing fences and garden furniture. The adjustable pressure settings allow users to switch between high and low pressure, making it suitable for delicate surfaces like glass windows or more robust surfaces such as concrete driveways.

The K3.97 M comes equipped with Karcher’s unique Plug 'n' Clean system, enabling users to switch cleaning agents effortlessly. This integrated system allows for the quick attachment of different detergents, helping to eliminate tough grime and stains efficiently. Additionally, the unit features a built-in water filter that protects the pump from dirt particles, ensuring a longer lifespan of the device.

For convenience, the K 3.97 M is designed with an onboard storage system for accessories and hoses. The included 6-meter high-pressure hose provides ample reach, preventing the need for constant repositioning of the unit during use. The unit also features ergonomic carrying handles, allowing for easy transport from one job site to another.

Another highlight of the K 3.97 M is its versatility in terms of cleaning accessories. It typically includes a Vario Power Spray lance and a dirt blaster nozzle, both of which enhance the cleaning capabilities. The Vario lance allows users to adjust the pressure quickly, while the dirt blaster nozzle provides a concentrated spray for stubborn dirt.

In summary, Karcher K 3.97 M combines power, adaptability, and user-friendly features, making it an excellent choice for homeowners looking for an effective cleaning solution. Its innovative technologies, including adjustable pressure settings, Plug 'n' Clean detergent system, and thoughtful design elements, ensure it meets various outdoor cleaning demands effectively.