Kärcher HDR 777 Anleitung Seite 17

Fault
Indicator lamp "Fault" glows
red
Reaction tank overflows
Plant is not running
Dirt water pump in the dirt
collector is not running
Dirt water pump does not
switch off
Strong foul odour
Consumption of sterilisation
agent is very high
Processed water tank is
overflowing
Troubleshooting
Possible cause
Filter full.
Dosing unit for splitting powder is
empty.
Dosing unit for liquid splitting agen
tis empty or dosing unit for sterilisa-
tion agent is empty (only for recy-
cling operations).
The short filling level probe in the
reaction tank gets triggered even if
the long probe in the reaction con-
tainer does not get triggered.
Contact problem in the reaction
tank (long filling level probe gets
triggered although the stirrer
shows "empty").
Contact problem in processed wa-
ter storage tank. Filling level probe
gets triggered although the long
probe shows "empty".
Contact problem of filling level
probes in the swimmer box of the
HDS - ASA/HDR attachment set
(possible only while recycling using
HDS - ASA/HDR attachment set).
Excess running of the pumps un-
der the reaction tank.
Floater switch in the dirt collector
(option) is triggered.
Stirrer shaft has got detached from
the motor shaft.
Filling level probe in the reaction
tank is dirty, defective or adjusted
wrongly.
No supply voltage
Dirt collector is empty.
Processed water storage tank in
the filter unit is filled.
Contact problems or control is de-
fective.
Pump is not connected, floater
switch S2 is not closed or pump is
defective.
Filling level probe in the reaction
tank is dirty or defective.
Dosing container for sterilisation
agent is empty.
Dosing in the dosing container for
the sterilisation agent is too less.
Dosing solenoid valve is defective. Replace solenoid valve.
Sterilisation agent is no longer ac-
tive.
Dosing in the dosing container for
the sterilisation agent is too high.
Dosing solenoid valve is defective. Replace solenoid valve.
Filling level probe in the processed
water tank is dirty or defective.
Solenoid valve for fresh water sup-
ply is dirty or defective.
Remedy
Clean or replace filter (see "Maintenance plan"). Operator
Switch off the plant. Fill up splitting powder up to
max. 2/3 of the dosing unit; restart the plant.
Switch off the plant. Top up liquid splitting agent
or sterilisation agent.
Switch off the plant. Empty the reaction tank,
clean the probes and then restart the plant. In-
form Customer Service if the short filling level
probe gets triggered again.
Switch off the plant. Clean the probes and then
restart the plant. Inform Customer Service if the
problem persists.
Switch off the plant. Clean the probes and then
restart the plant. Inform Customer Service if the
problem persists.
Switch off the plant. Clean the probes and then
restart the plant. Inform Customer Service if the
problem persists.
Inform Customer Service
Check plant and high-pressure cleaner and in-
form Customer Service if required.
Faster the stirrer shaft back to the coupling; se-
cure the coupling.
Check, clean, adjust or replace filling level
probes.
Mains cable in socket? Check mains.
Fill dirt collector or hang the dirt water pump a lit-
tle lower.
In recycling, wait till the processed water is con-
sumed by the high-pressure cleaner; otherwise
clean or replace the supply pump for high-pres-
sure cleaner.
Check contact or replace the control PCB.
Connect the pump. Connect the floater switch S2
or bridge the contact on the PCB. Clean or re-
place the pump.
Clean or replace the filling level probe.
Refill container.
Increase dose.
Check sterilisation agent and replace with a new
one, if required.
Reduce dose.
Clean or replace the filling level probe.
Clean or replace the solenoid valve.
6
-
EN
of whom
Operator
Operator
Operator
Operator
Operator
Operator
Operator
Operator/Customer
Service
Customer Service
Operator/Customer
Service
Operator
Operator
Operator/Customer
Service
Customer Service
Customer Service
Customer Service
Operator
Customer Service
Customer Service
Operator/Customer
Service
Customer Service
Customer Service
Operator/Customer
Service
Operator/Customer
Service
17