Kärcher HDS 13/20 De Tr1 Operating Manual page 35

Display Possible cause
ERROR 1 V-belt tension on the fan insufficient.
Charging current
Alternator defective.
Charging current monitoring defective.
ERROR 3 Water temperature in the float container too high
Temperature water due to circulation mode.
inlet or cooling water
Temperature sensor water inlet has switched off the
device.
Temperature sensor water inlet defective.
Coolant level too low.
V-belt tension on the fan insufficient.
Temperature sensor cooling water on the motor de-
fective.
ERROR 4 External water supply: Water inlet pressure to low. Check water inlet.
Water shortage
Internal water supply: Water tanks empty.
Water shortage safeguard in the float container de-
fective.
Water filter soiled.
Water hose leaky or kinked.
Float valve in the float container is soiled.
Float valve in the float container jammed or defective. Repair or replace the float valve.
ERROR 5 Flow switch defective.
Flow switch/pres-
Pressure switch is defective.
sure switch
Overflow valve is defective.
Check valve in the overflow valve defective.
Fine filter on the pump head is soiled.
ERROR 6 Fuel tank empty.
Fuel sensor
Float of the fuel sensor jammed.
Fuel sensor defective.
ERROR 7 Oil level in the motor too low.
Motor oil pressure
Oil in the motor has the wrong viscosity grade.
Oil pressure switch on the motor defective.
Motor trouble
ERROR 9* Exhaust gas thermostat has responded and
Emission tempera- switched off the burner.
ture
Exhaust gas thermostat defective.
Burner has been wrongly set.
Heating coil soiled or calcified.
ERROR 10* Temperature sensor burner (NTC) has switched off
Temperature burner the burner.
Temperature sensor of the burner defective.
ERROR 11* Nozzle holder soiled.
Flame sensor (no
Ignition electrodes have been set up wrongly or are
flame)
dirty.
Photo cell of the flame monitoring defective.
Fuel pump defective.
Solenoid valve fuel is defective.
Fuel filter choked.
Ignition transformer faulty.
ERROR 12* Photo cell of the flame monitoring defective.
Flame sensor (flame
Burner sooted, "afterglow".
does not go out)
ERROR 14 Standby time of 45 minutes exceeded.
Switch-off after 45
minutes continuous
break
ERROR 15 Standby time of 45 minutes exceeded.
Switch-off after 45
minutes continuous
operation
* Cleaning operation with cold water is possible.
Faults with display
Remedy
Retension the V-belt on the fan.
Check alternator, replace if necessary.
Check wiring + relay K9.
Allow the water to cool down or drain it.
Turn the appliance off and back on. Inform
the customer service if the malfunction re-
occurs.
Replace the temperature sensor.
Fill coolant into the expansion tank.
Retension the V-belt on the fan.
Replace the temperature sensor.
Fill water tanks.
Replace the water shortage safeguard.
Clean water filter.
Replace water hose.
Clean float valve.
Replace flow switch.
Replace the pressure switch.
Replace overflow valve.
Replace the check valve.
Clean the fine filter.
Refill fuel.
Check the swimmer.
Replace fuel sensor.
Refill motor oil.
Perform oil change.
Replace oil pressure switch.
Check motor.
Switch off the device, allow to cool down
and restart. Inform the customer service if
the malfunction reoccurs.
Replace the exhaust gas thermostat.
Adjust the burner.
Decarbonise or decalcify heating coil.
Turn the appliance off and back on. Inform
the customer service if the malfunction re-
occurs.
Replace the temperature sensor.
Clean the nozzle holder.
Properly adjust or clean the ignition elec-
trodes.
Replace the photo cell.
Replace fuel pump.
Replace solenoid valve.
Replace fuel filter.
Replace the ignition transformer.
Replace the photo cell.
Have the burner decarbonized.
Turn the appliance off and back on.
Turn the appliance off and back on.
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