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English HDS Super, HDS 695 S, HDS 745, HDS 895 S, HDS 995, HDS 1195, HDS 1295 12
Unit does not run
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
No mains voltage
– Check mains connection/power cord
Unit does not build up pressure
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
Air in system
– Bleed pump:
* Set the cleaning agent metering valve
(item 31) to "0"
* While the handgun is open switch the unit on
and off several times with the unit switch.
* With handgun open, open and close regulator
(Figure 9).
* Venting is accelerated by removing the high-
pressure hose from the high-pressure
connection.
– Fill up cleaning-agent tank if empty.
– Check connections and lines
Pressure set to MIN
– Set pressure to MAX
Strainer in water connection dirty
– Clean strainer
Insufficient water supply
– Check water supply volume
(refer to technical data)
–
Unit leaking, water dripping out at bottom
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
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
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
Leak in high-pressure system
– Check high-pressure system and connections
for leaks
Unit does not draw in cleaning agent
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
Operate the unit with an opened cleaning agent
metering valve and a shut off water inlet until
the float tank is suctioned empty 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 15.
Burner not ignited
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
Fuel tank empty
– Fill up
Lack of water
– Check water connection, check supply lines,
clean low water protection.
Fuel filter 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 the poles at the unit plug.
See figure 16.
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
(HDS 745, HDS 695 S, HDS 895 S, HDS 995,
HDS 1195, HDS 1295, HDS Super)
Excessive operating pressure/flow rate
– Reduce operating pressure/flow rate by way
of regulator (Figure 9)
Soot deposits on heating coil
– Have After-Sales Service remove soot
deposits from unit
If the problem cannot be resolved the unit
must be checked by after sales service.