Kärcher SB MB, User Manual

Page: 71 / 424

English 71
Faults that are not displayed
Malfunctions in the hot water circuit
Malfunctions on the washing station heater
F0614 Osmosis tank level switch Bottom and full osmosis tank level switches switch simultaneously. Check
level switch.
F0615 Water softening no water pressure Check the water supply
F0617 On-site water softening and osmosis system Check on-site water softening and osmosis system
F0650 Vacuum cleaner 1 / button 1 jammed Start button/vacuum cleaner station selection button is jammed
F0651 Vacuum cleaner 1 / button 2 jammed Start button/vacuum cleaner station selection button is jammed
Ff0660 Vacuum cleaner 2 / button 1 jammed Start button/vacuum cleaner station selection button is jammed
F0661 Vacuum cleaner 2 / button 2 jammed Start button/vacuum cleaner station selection button is jammed
F0670 Vacuum cleaner 3 / button 1 jammed Start button/vacuum cleaner station selection button is jammed
F0671 Vacuum cleaner 3 / button 2 jammed Start button/vacuum cleaner station selection button is jammed
F680 Vacuum cleaner 4 / button 1 jammed Start button/vacuum cleaner station selection button is jammed
F0681 Vacuum cleaner 4 / button 2 jammed Start button/vacuum cleaner station selection button is jammed
F0690 Vacuum cleaner 5 / button 1 jammed Start button/vacuum cleaner station selection button is jammed
F0691 Vacuum cleaner 5 / button 2 jammed Start button/vacuum cleaner station selection button is jammed
F0700 Vacuum cleaner 6 / button 1 jammed Start button/vacuum cleaner station selection button is jammed
F0701 Vacuum cleaner 6 / button 2 jammed Start button/vacuum cleaner station selection button is jammed
F0720 Wheel cleaner pump overcurrent Current consumption of pump too high. Acknowledge fault. If the fault occurs
again, inform Service.
F0740 Micro-emulsion pump overcurrent Current consumption of pump too high. Acknowledge fault. If the fault occurs
again, inform Service.
F0750 Intensive foam pump overcurrent Current consumption of pump too high. Acknowledge fault. If the fault occurs
again, inform Service.
Error number Cause Rectification
Malfunction Possible cause Rectification By whom
Water shortage in the hot
water float tank Water inlet blocked Open the stop valve for fresh water. Operator
Fine filter of fresh water in water treat-
ment is contaminated Clean or replace the filter inlay. Operator
Float valve in the hot water float tank
does not open Check the float valve, repair if necessary. Operator
Water shortage safeguard in the hot
water float tank is stuck or defective Check the water shortage safeguard, replace if necessary. Operator
Hose line burst or loosened Check the hose lines, replace if necessary. Operator
Pump disconnection from mains (op-
tional) not working Check the voltage supply. Customer Service
Check the pump. Customer Service
Water temperature too
low / too high Thermostat defective Check the thermostat, replace if necessary. Customer Service
The hot-water generator
does not start or stops
heating Flow monitor defective (not with electri-
cally heated device) Check the flow monitor, clean it, replace it if necessary. Customer Service
Washing water circuit is calcified Check the water treatment, descale the circuit. Customer Service
Air in the hot water circulation pump Vent the pump at the venting screw. Operator
Rotation direction of the hot water cir-
culation pump is wrong Check the rotation direction, change if necessary. Customer Service
Thermostat defective Check the thermostat, replace if necessary. Customer Service
Protection for hot water circulation
pump defective Check the protection, replace if necessary. Customer Service
Motor protection switch for hot water
circulation pump has tripped because
the circulation pump is blocked or the
pump is defective Check the circulation pump, repair or replace if necessary.Reset the motor protec-
tion switch. Customer Service
Malfunction Possible cause Rectification By whom
Circulation pump for
washing station heater is
out of operation Temperature in the hot water tank be-
low 10 °C (malfunction indicator
"F0144"). Locate and rectify the fault in the hot water circuit. Operator/Customer
Service