Karcher HD 7/250 DE TR1 manual Faults with display, Display/meaning Cause Remedy By whom

Faults

￿ Danger

This can lead to severe injuries and possi- bly death. An improper startup and repair of the appliance and the spray unit is danger- ous.

Faults with display

Faults detected by the control are shown on the display.

1 Display

2 Fault indication

3 Reset key to confirm the fault

ÎRead the fault message on the display and remediate the fault as per the table below.

ÎPress the reset button to acknowledge/ confirm the fault message.

Display/meaning	Cause	Remedy	By whom
	Emergency Stop switch depressed	Unlock Emergency Stop switch	Operator
	Remote control not connected	Create connection	Operator
	Plug wet	Dry the plug	Operator
>Malfunction<	Plug defective	Replace the plug	Customer Service
	Switch in the hand spray gun defective	Check the switch, replace	Customer Service
EMERGENCY
STOP	Cable breakage	Replace the cable	Customer Service
	Device hood open	Close appliance hood	Operator
	Cable breakage	Replace the cable	Customer Service
>Malfunction<	Safety switch for appliance hood defective	Check safety switches.	Customer Service
Hood open
	Fuel tank empty.	Refill diesel fuel	Operator
	Level sensor defective	Replace level sensor	Customer Service
>Malfunction<	Cable breakage	Replace the cable	Customer Service
Tank level
	See motor operating instructions
	Level of coolant too low	Refill cooling water	Operator
	Radiator contaminated	Clean the radiator	Operator
>Malfunction<	V-belt tension on the ventilator too low	Retension V-belt	Customer Service
	Thermostat defective	Replace the thermostat	Customer Service
Cooling water level
	Cable breakage	Replace the cable	Customer Service
	Motor oil level too low	Check the motor oil level	Operator
	Oil the motor has the wrong viscosity	Replace engine oil.	Customer Service
	Oil pressure switch on motor defective	Replace oil pressure switch on motor	Customer Service
>Malfunction<	Cable breakage	Replace the cable	Customer Service
	Look for more instructions in the motor's operating instructions
Motor oil pressure
	Coolant level in the motor too low	Check coolant units	Operator
	Radiator contaminated	Clean the radiator	Operator
	V-belt tension on the ventilator drive too low	Check V-belt tension	Operator
>Malfunction<		Tighten V-Belt	Customer Service
	Thermostat defective	Check thermostat	Customer Service
Motor temperature
	Defective temperature switch	Check the temperature switch	Customer Service
	Cable breakage	Replace the cable	Customer Service
	Look for more instructions in the motor's operating instructions
	Ball tap of drain open	Close the ball tap	Operator
	Water in the compressed air tank	Drain water	Operator
	Air system leaks	Seal the air system	Customer Service
>Malfunction<	Compressor defective	Repair the compressor	Customer Service
	V-belt tension on the compressor drive too low	Tighten V-Belt	Customer Service
Tyre pressure
	Pressure switch is defective	Check/replace the pressure switch	Customer Service
	Cable breakage	Replace the cable	Customer Service

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