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21
HD 1000 Si
GB
GB
Disconnect the appliance from the
electrical mains before all repair work.
Electrical components may only be
inspected by the authorized customer
service.
7.1 Appliance does not Work
·
Check the mains voltage.
·
Check the connector cable for damage.
7.2 Appliance does not Reach
Pressure
·
Rotate the hand wheel on the hand spray gun
to maximum.
·
Adjust the 3-way nozzle to high pressure.
·
Clean and, if necessary, replace the 3-way
nozzle.
·
Fill the cleaning-agent tank or set the metering
valve to zero.
·
Ventilate the appliance (see Operation,
Ch. 5).
·
Clean the sieve in the water connection.
·
Check the water flow rate (see technical data,
Ch. 3).
·
Check all inlet pipes to the pump for leaks or
blockage.
7.3 Pump Leaks
·
3 drops per minute are permissible. Contact
customer service if leak is stronger.
7. Troubleshooting
7.4 Pump Knocks
·
Check all inlet pipes to the pump, including
cleaning-agent system, for leaks and
blockage.
·
Ventilate the appliance.
7.5 No Cleaning-Agent Suction
·
Adjust the 3-way nozzle to low pressure.
·
Clean the cleaning-agent suction hose
together with filter.
·
Clean the cleaning-agent metering valve.
·
Clean the non-return valve on the pump head
with the connection for the cleaning-agent
suction hose.
·
Check all cleaning-agent hoses and
connections for leaks.
7.6 Appliance Switches On and Off
Repeatedly
·
Clean the 3-way nozzle.
·
Use a larger nozzle if you are using high-
pressure extension hoses.