Karcher Nettoyeur cryogénique IB 7-40 Advanced: Troubleshooting

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7

1 Screw

2 Lower part

3 Nut

4 Disc

5 Filter inlay

6 Upper section



Loosen 4 screws. 



Remove the lower part.



Unscrew the nut.



Remove the disc.



Remove the filter inlay and replace it 

with a new filter inlay. 



Reassemble the water separator in the 

reverse sequence. 

According to the specifications of BDV D 

26, the following tests must be conducted 

by a technical expert.  The results of the 

tests must be documented in a test report.  

The device operator must carefully store 

the test report until the next test. 



Check the device to see that it is in a 

proper condition and is functioning well. 



Check the device to see that it is in a 

proper condition, is functioning well and 

has been installed properly.



Check the device to see that it is in a 

proper condition, is functioning well and 

has been installed properly.



Danger!

Risk of accident while working on the appli-

ance. Carry out all the steps described in 

the chapter "Shut down" before starting 

anhy work on the device.



Danger

Risk of cold burns on account of dry ice or 

cold parts of the machine. While working on 

the machine, wear appropriate safety gear 

for protection against cold or remove dry 

ice and let the machine heat up.

Never put dry ice in your mouth. 

Maintenance Works

Replace the filter insert in the water sep-

arator.

Tests

After a working break of more than one 

year

After changing the installation site

The operational safety of the device 

can get hampered on account of main-

tenance jobs or any modifications that 

have been done.

Troubleshooting

Faults with display

Display

Indicator lamp

(KL)

Possible cause

Remedy

By whom

E001

KL control voltage 

glows red

Control voltage too low

Turn off the appliance, wait briefly, turn on the appli-

ance once again.

Have the socket checked.

If this error recurs, please contact the Kärcher cus-

tomer service department

Operator

E002

KL emergency stop 

glows red

Emergency-stop button has 

been pressed.

Release emergency-stop button by turning.

Operator

E003

KL compressed air 

glows red

Pressure of the compressed air 

supply too low

Increase the pressure.

Turn off the appliance, wait briefly, turn on the appli-

ance once again.

Operator

E004

KL dosing glows 

red

Interference in the dosing

Turn off the appliance, wait briefly, turn on the appli-

ance once again.

If this error recurs, please contact the Kärcher cus-

tomer service department

Operator

E005

KL jet pistol glows 

red

Connection between the de-

vice and the jet pistol is faulty.

Check for correct connection of the couplings in the 

control line.

Check control cable for damages.

Operator

E006

KL jet pistol glows 

red

Short in jet pistol or control ca-

ble

Replace the jet pistol or the jet hose with a control ca-

ble.

Operator

E007

KL compressed air 

glows red

Fault in the compressed air 

regulator valve

Call Customer Service. 

Operator

E008

KL jet pistol glows 

orange

The trigger of the jet pistol was 

activated during the switch-on 

process or the releasing of the 

emergency stop key.

Release the trigger of the jet pistol.

Operator

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EN

     - 

8

Faults without display on the console

Fault

Possible cause

Remedy

By whom

No display inspite of 

power switch in posi-

tion 1

Mains Plug not connected to the socket.

Insert the mains plug into a socket.

Operator

Fuse F1 blown

Remove the side panel and unlock the fuse F1 by 

pressing on it.

Operator

No compressed air jet 

despite the trigger be-

ing drawn

Compressed air supply has too little pres-

sure

Check pressure level.

Operator

Jet pressure is set too low

Set the jet pressure to a higher level.

Operator

Power supply has been interrupted

Check power supply. Indicator lamp "Device on" 

must glow green.

Operator

Emergency-stop button has been pressed.

Release emergency-stop button by turning. Indi-

cator lamp "Device on" must glow green.

Operator

Control cable not connected properly

Check connection between control cable and the 

jet pistol and between the control cable and the 

device. 

Operator

Control cable is defective

Replace spray agent hose.

Operator

Compressed air jet is 

too weak

Jet pressure is set too low

Set the jet pressure to a higher level.

Operator

Compressed air supply has too little pres-

sure or the compressor output is low.

Check pressure and output. 

Operator

The filter insert in the water separator is 

plugged.

Replace the filter inlay in the water separator. 

Operator

Spray agent hose or jet pistol is blocked

Let the spray agent hose and jet pistol come to 

room temperature and remove the blocking. In-

crease working pressure and / or reduce the dry 

ice dosing.

Operator

No dry ice pellets in 

the compressed air jet

Dry ice dosing switched off (IB 7/

40 Advanced only), button "Dry ice dosing 

on/off" on the jet gun lights glows red, dis-

play shows "Ice off".

Press the dry ice dosing key on the jet pistol.

Operator

Dry ice container is empty

Refill the dry ice container

Operator

Dry ice has melted

Empty the dry ice container and refill it with fresh 

dry ice pellets.

Operator

Vibrator on the dry ice container is not work-

ing

Call Customer Service. 

Operator

Drive motor of the dosing equipment is over-

loaded

Let the dosing thaw

Operator

Compressed air is exiting into the dry ice 

container

Clean the pressure balance channel in the dosing 

equipment. 

Customer 

Service

Dosing disc in the dosing unit is defective

Replace the dosing disc. 

Customer 

Service

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EN