Kärcher HDS 995 MX Eco, Manual

Page: 18 / 23

English Operating Instructions
34
! Fill up cleaning-agent tank if empty.
! Check connections and lines
—
Pressure set to MIN
! Set pressure to MAX
— Strainer in water connection is dirty
! Clean strainer
! Clean fine filter, replace it if necessary
— Insufficient water supply
!
Check water supply volume (refer to
technical data)
Unit leaking, water dripping out at
bottom
— Pump leaking
3 droplets/min are permitted.
! In the event of a major leak, have unit
checked by After-Sales Service.
Unit constantly switched on and off with
handgun closed
—
Leak in high-pressure system
! Check high-pressure system and
connections for leaks
Unit does not draw in cleaning agent
! Run the unit with an opened cleaning
agent metering valve and a closed water
supply until the float tank is sucked dry
and the pressure drops to "0".
! Now reopen the water inlet.
If the pump still does not suction up
cleaning agent the reasons can be as
follows:
—
Filter in cleaning-agent suction hose
dirty
!
Clean filter
—
Non-return valve gummed up
! Pull the cleaning agent hose off and
detach the non-return valve with a blunt
object, see Figure 17.
Burner not ignited
—
Fuel tank empty
! Fill up
— Lack of water
!
Check water connection, check supply,
clean low water protection.
— Fuel filter is dirty
!
Replace fuel filter.
—
Incorrect direction of rotation. If direction
of rotation is correct, powerful jet of air
will be felt at exhaust-gas opening of
burner.
!
Check direction of rotation. If necessary,
change round poles of unit plug. See
Fig. 18.
—
No ignition spark
! Have unit checked by After-Sales
Service if no ignition spark is visible
through inspection glass during
operation.
Set temperature not attained when
working with hot water
—
Excessive operating pressure/flow rate
! Reduce operating pressure/flow rate by
way of regulator (Fig. 10)
—
Soot deposits on heating coil
! Have After-Sales Service remove soot
deposits from unit
The unit must be checked by after sales
service if the problem cannot be
remedied.