Kärcher HDC 40/8 Mode D'emploi page 23

DANGER
Risk of injury! The main switch is to be switched off with
all repair work.
A Error number
B Number of currently present errors
Error num- Error description
ber
01 Control voltage is missing
02 Display, no communication
10 Motor protection switch high
pressure pump 1
11 Motor protection switch high
pressure pump 2
12 Motor protection switch high
pressure pump 3
13 Motor protection switch high
pressure pump 4
18 Winding protection contact
high pressure pump 1
Fault
Appliance is not running
Pump starts during the stand-by period
and not when the hand spray gun is
opened.
Full pressure does not build up in the ap-
pliance
High pressure pump is knocking; ma-
nometer is swaying wildly
Overflow valve opens and closes contin-
uously during 0 takeover
Error code 01 is displayed
Error number 10, 11, 12, 13 is displayed Overflow protection switch of the respective
Error number 18, 19, 20, 21 is displayed Thermal sensor of the respective motor has
Error code 26 is displayed
Error code 40 is displayed
Error code 41 is displayed
Error code 42 is displayed
Error code 43 is displayed
Error code 45 is displayed
Troubleshooting
19 Winding protection contact
high pressure pump 2
20 Winding protection contact
high pressure pump 3
21 Winding protection contact
high pressure pump 4
26 Motor protection switch ad-
vance pressure pump
30 Switch "On" constantly occu-
pied (control input)
31 Switch "On" constantly occu-
pied (display)
32 Switch "Off" constantly occu-
pied (control input)
40 Water shortage
41 Water temperature is too high 2
42 Leakage switch-off 1 (30 min-
Error
utes of continuous operation).
type
43 Leakage switch-off 2 (minor
2
leakage)
2
45 Pressure too high (> 300 bar) 2
1
47 Overflow valve adjusted in-
correctly
1
48 HDC type set incorrectly
50 Pressure sensor for high
1
pressure does not transmit
signal
1
51 Flow switch permanent signal 2
52 Temperature sensor does not
1
transmit signal
Possible cause
There is no voltage in the machine.
Motor protection switch for the control has
been triggered.
Pressure sensor for high pressure or cable to
pressure sensor defective.
Flushed the nozzle.
Suction site pipe leaking.
Safety valve is leaky.
Overflow valve is leaking or set too low.
Valve in the pump defective, high-pressure
solenoid valve does not close.
Pump is sucking air.
Valve plate or valve spring is defective.
Advance pump calcified or defective.
Leakage in the high-pressure pipeline system
or hand spray gun leaking.
Backflow valve or control piston seal leaking
in overflow valve.
Control board defective, green LEDs are not
blinking.
high pressure pump has been triggered.
been triggered.
Overflow protection switch of the advance
pressure pump has been triggered.
The water shortage safeguard in the swimmer
tank has got activated.
Swimmer valve is jammed.
The temperature sensor in the swimmer tank
has been activated.
Leakage in the high-pressure pipeline system.
Too many consumer loads open at the same
time.
Pressure sensor for high pressure defective.
Leakage in the high-pressure pipeline system.
Pressure sensor for high pressure defective. Replace pressure sensor.
Pressure too high (> 300 bar).
Pressure sensor for high pressure defective. Replace pressure sensor or cable.
1
1
1
2
2
2
2
2
2
2
2
2
2
2
Remedy
Check electrical mains.
Check motor protection switch.
Replace pressure sensor or cable.
Replace the nozzle.
Check screw fittings and hoses.
Check the setting; install new washers, if required.
Check valve parts; replace damaged parts; clean the dirt. Customer Service
Replace defective components.
Check suction system and remove leaks.
Replace defective components.
Check advance pump.
Locate and seal leakage.
Repair the overflow valve.
Check control board, replace if necessary.
Rectify cause for over-loading.
Rectify cause for over-loading.
Rectify cause for over-loading.
Remove the water shortage.
Check swimmer valve for free movement.
Reduce water infeed temperature.
Locate and seal leakage.
Close some consumer loads.
Replace pressure sensor.
Locate and seal leakage.
Incorrect nozzle inserted. Insert correct nozzle.
9
-
EN
– Error type 1: Emergency operation of the system
with remaining high pressure pumps.
– Error type 2: The operating readiness of the system
is switched off and the high pressure pumps are
shut off.
– If one of the above errors occurs, the appliance can
be restarted after the error has been corrected by
activating the release switch.
Note: The 40 most recently occurred errors are saved
with the respective date and time and can be shown on
the display.
A Date of error event
B Time of error event
C Error number
D List location of error
E Number of saved errors
of whom
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