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HDS 2000 Super
28
GB
7. Troubleshooting
7.2 Indicator lights
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Indicator light for fuel tank lights up
– Refill with fuel.
– Check that the fuel level sensor is
functioning correctly.
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• Indicator light for liquid softener lights up
– Refill with RM 110 liquid softener.
– Clean the electrodes in the liquid softener
tank.
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• If warning light for detergent illuminates
– Refill with detergent.
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• Indicator light for incorrect motor rotation
illuminates
– See chapter 4.7.
7.3 The appliance does not come up to
pressure
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• Fill the detergent tank or set the metering
valve to zero.
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• Vent the appliance (see Operation, chap. 5).
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• Clean strainer in water inlet on both float
tanks.
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• Check the water intake volume (see technical
data, chap. 3).
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• Check all the supply lines to the pump for
leaks and blockages.
7.4 The pump is knocking
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• Check all the supply lines to the pump, also
the detergent system, for leaks and blockages.
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• Vent the appliance (see Operation, chap. 5).
7.5 Detergent is not being drawn in
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Clean the detergent suction hose and filter.
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• Clean the metering valve for cleaning agent.
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• Clean the non-return valve on the pump head
and the connection for the detergent suction
hose.
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• Check all the detergent hoses and connections
for leaks.
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• Check whether the detergent solenoid valves
have opened.
7.6 Burner does not ignite
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• The ignition sparks can be observed through
the inspection window in the burner cover.
The appliance has a continuous ignition., i.e.
even when operating with cold water an
ignition spark must be visible. Clean, adjust
or replace the ignition electrodes as required.
– Fill the fuel tank.
– Check that the fuel pump and the fuel
solenoid valve function correctly.
– Clean the strainer in the low-water safety
device.
– Change the fuel filter.
– Clean the sensor for the electronic flame
monitor.
7.7 The temperature is not reached
when operating with hot water/steam
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• Set the thermostat higher.
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• Reduce the operating pressure and the flow
rate.