Karcher WPC 2500 BW-AM: Faults

18 

English

The LEDs on the operating panel and on 

the display will show the interruptions in the 

RO plant.

Note

If there is an interruption, the plant gets 

switched off automatically and the drinking 

water production is interrupted.  If the prob-

lem cannot be rectified, switch off the plant 

and inform Kärcher Customer Service.

Î

If the plant does not start automatically, 

pull the plug out of the socket, wait for 5 

seconds and insert back the plug.  The 

controls will get reset.

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Rectify other faults according to the de-

tails provided in the following tables. 

Faults

Interruptions in the RO plant

Description / 

Display

LED

fault

Dosing container is empty

Fill dosing container and then acknowledge the fault.

Sensor signal missing

Inform Customer Service.

regeneration

Automatic flush is active

Nothing needs to be done; the plant will start automat-

ically

tank full

Drinking water tank is full.

Nothing needs to be done; the plant will start automat-

ically

Float switch in drinking water tank is defective.

Inform Customer Service.

Display

Conductivity 

exceeded

Guide value of drinking water is too high.

Inform Customer Service.

Hard water

Dosing container is empty

Fill dosing container and then acknowledge the fault.

Pressure in-

terruption

Pressure of raw water is too low.

Check raw water supply:

– Installation in the building

– Advance pressure pump

– Fine filter status (see "Maintenance tasks"

Interruptions in the dosing stations

Dosing pump transports too 

much or too little

Dosing frequency is displaced.

Set the dosing frequency.

Dosing pump does not trans-

port.

Mains plug of the dosing pump not set correctly. Connect the mains plug to the unit.

Plant is not switched on.

Switch on plant.

Dosing pump is not deaerated.

Bleed dosing pump.