Troubleshooting Guide - Kärcher SB MB Bedienungsanleitung

5. Remove the baffle plate from the nozzle holder.
6. Clean the sight glass.
7. Reassemble the parts in reverse order.
Clean the fuel pump filter
1. Shut off the oil supply line.
2. Unscrew the filter casing.
Fuel pump
1
Filter casing
2
3. Clean the filter with compressed air.
4. Install the fuse holder in the reverse order.
5. Open the oil supply line.
Oil change
WARNING
Danger of burns
The high-pressure pump and the engine oil are hot and
cause burns if touched.
Allow the high-pressure pump to cool down for 15 min-
utes before changing the oil.
Note
Old oil may only be disposed of at designated collection
points. Please dispose of any old oil at these locations.
Polluting the environment with old oil is punishable by
law.
1. Place a suitable oil collection container under the oil
drain screw.
Oil drain screw
1
Oil tank
2
Cover
3
2. Remove the oil tank cap.
3. Unscrew the oil drain screw and catch the escaping
oil.
4. Replace the sealing ring and screw in and tighten
the oil drain screw.
5. Slowly fill with new oil until the "MAX" marking on the
oil tank.
6. Fit the oil reservoir cap.
7. Dispose of the old oil in an environmentally friendly
manner or hand it over to an authorised collection
point.
Cleaning the coin slot
1. Open the device door.
2. Open the coin acceptor.
Coin acceptor
1
3. Clean the coin track with a damp cloth with washing-
up liquid.
Electrode setting
The correct setting of the ignition electrodes is important
for the function of the burner. The setting dimensions
are shown in the drawing below.
Ignition electrode
1
Manual regeneration of base exchanger WAT--SE
220/255B
1. Start the regeneration via the controller (see "Con-
troller/Service menu").
Manual regeneration of base exchanger WAT-S 202
1. Press in the programme button and turn the cam-
shaft anticlockwise until the arrow on the pro-
gramme button points to "Salting + washing".
Programme button
1
English

Troubleshooting guide

DANGER
Risk of injury
Danger of death from electric shock.
Switch off the device at the on-site main trigger and se-
cure against being switched on again before working on
the device.
Allow only qualified electricians to work on electrical
components of the system.
WARNING
Risk of injury
A high pressure water jet can escape from damaged
parts and cause injuries.
Depressurise the system by turning the trigger to "0/
OFF" and then open the high-pressure guns until the
pressure has been released from the system.
WARNING
Danger of burns
Some components of the system become hot during op-
eration and can cause burns if touched.
Allow the system to cool down before touching the fol-
lowing components: Exhaust pipe and exhaust opening,
burner with booster heater, cylinder head of the high-
pressure pump, high-pressure hose.
1. Switch off the on-site main switch and secure it
against being switched on again.
2. Disconnect the water supply.
Who is permitted to eliminate faults?
Operator: Work labelled with "Operator" may only be
performed by instructed persons capable of operating
and maintaining high-pressure systems.
Qualified electrician: Work labelled with "Electrician"
may only be performed by qualified electricians.
Customer Service: Work labelled with "Customer ser-
vice" may only be performed by KÄRCHER customer ser-
vice technicians or KÄRCHER-authorised technicians.
Customer Service of the burner manufacturer:
Faults on the gas burner may only be repaired by the
burner manufacturer's Customer Service.
Current errors, faults and events
If critical errors, fault messages or events are present,
the start screen automatically changes to the message
view after approx. 1 minute.
A pending message is indicated on the controller by an
Attention symbol in the upper right corner.
Display for existing messages
1
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