Oil change
Ready a catch bin for appr 1 Litre oil.
Loosen release screw.
Dispose of old oil ecologically or turn in at a gathering
point.
Tighten release screw.
Fill oil slowly up to the MAX marking.
Note: Air pockets must be able to leak out.
For oil type refer to technical specifications.
Troubleshooting
DANGER
Risk of injury by inadvertent start-up of appliance and
electric shock. Prior to all work on the appliance, switch
off the appliance and pull the power plug.
Indicator lamp pump
2x blinking
–
Leak in the high pressure system
Check high pressure system and connections for
tightness.
3x blinking
–
Water shortage
Check water supply, check connections.
4x blinking
–
Obstructed reed switch in the water shortage safe
guard.
Check water shortage safe guard.
Indicator lamp rotation direction is blinking
Figure 10
Exchange the poles at the appliance plug.
Indicator lamp "Ready for use" turns off
–
No line voltage, see "Appliance is not running".
Engine indicator lamp
1x blinking
–
Contactor error
Set the appliance switch to "0/OFF".
Turn on the appliance.
–
Error occurs repeatedly.
Inform Customer Service.
2x blinking
–
Engine overload/overheat
Set the appliance switch to "0/OFF".
Allow device to cool down.
Turn on the appliance.
–
Error occurs repeatedly.
Inform Customer Service.
3x blinking
–
Fault in the voltage supply.
Check main connections and mains fuse.
4x blinking
–
Excessive power consumption.
Check main connections and mains fuse.
Inform Customer Service.
22
Indicator lamp burner failure
1x blinking
–
The exhaust temperature limiter has been trig-
gered.
Set the appliance switch to "0/OFF".
Allow device to cool down.
Turn on the appliance.
–
Error occurs repeatedly.
Inform Customer Service.
2x blinking (option)
–
The flame sensor turned the burner off.
Inform Customer Service.
3x blinking
–
System care detection defective
Inform Customer Service.
4x blinking
–
Temperature sensor defective
Inform Customer Service.
Indicator lamp service
–
Service interval
Perform service work.
Fuel indicator lamp glows
–
Fuel tank empty.
Refill fuel.
Indicator lamp system care is illuminated
Note: Burner can operate 5 more hours.
–
System care tank is empty, due to technical rea-
sons a remainder stays in the tank.
Refill system care.
Indicator lamp system care is blinking
Note: Burner operation no longer possible.
–
System care container is empty.
Refill system care.
Indicator lamp detergent 1 is illuminated
–
Detergent tank 1 is empty.
Refill detergent.
Indicator lamp detergent 2 is illuminated
–
Detergent tank 2 is empty.
Refill detergent.
Appliance is not running
–
No power
Check power connection/conduit.
Device is not building up pressure
–
Air within the system
Vent pump:
Set dosing value for detergent to "0".
With open hand spray gun turn device on and off
multiple times with the device switch.
Open and close the pressure/quantity regulation at
the pump unit with the hand spray gun open.
Note: By dismantling the high pressure hose from the
high pressure connection the venting process is accel-
erated.
If detergent tank is empty, refill.
– 7
EN
(HDS 12/18 only)
(HDS 12/18 only)