Heater can only operate 5 more
hours.
– System care bottle empty.
Replace the system care bottle.
Heater operation no longer possible.
– System care bottle empty.
Replace the system care bottle.
– No power
Check power connection/conduit.
– Air within the system
Vent pump:
Set dosing value for detergent to 0 .
With open hand spray gun turn device
on and off multiple times with the device
switch.
Open and close the pressure/quantity
regulation at the pump unit with the
hand spray gun open.
By dismantling the high pressure
hose from the high pressure connection the
venting process is accelerated.
If detergent tank is empty, refill.
Check connections and conduits.
– Pressure is set to MIN
Set pressure to MAX.
– Sieve in the water connection is dirty
Clean sieve.
Clean the fine filter replace it, if neces-
sary.
– Amount of water supply is too low.
Check water supply level (refer to tech-
nical data).
28
– Pump leaky
3 drops/minute are allowed.
With stronger leak, have device
checked by customer service.
Condensate can cause increased
drop generation on the appliance.
– Leak in the high pressure system
Check high pressure system and con-
nections for tightness.
Leave the appliance running with open
detergent dosing valve and closed wa-
ter supply, until the boiler is sucked
empty and the pressure falls to 0 .
Open the water supply again.
If the pump still is not sucking in any deter-
gent, it could be because of the following
reasons:
– Filter in the detergent suck hose dirty
Clean filter.
– Backflow valve stuck
Remove the detergent hose and loosen
the backflow valve using a blunt object.
– System care bottle empty.
Replace the system care bottle.
– Water shortage
Check water supply, check connections.
– Heater defective.
Inform Customer Service.
– Working pressure/flow rate to high
Reduce working pressure/flow quantity
at the pressure/volume regulator in the
pump unit.
EN
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