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Fault Possible cause Remedy of whom
Appliance is not running There is no voltage in the machine. Check electrical mains. Electrician
Motor protection switch for the con-
trol has been triggered.
Check motor protection switch. Customer Service
Pump starts during the stand-by
period and not when the hand
spray gun is opened.
Pressure sensor for high pressure
or cable to pressure sensor defec-
tive.
Replace pressure sensor or cable. Customer Service
Full pressure does not build up
in the appliance
Flushed the nozzle. Replace the nozzle. Operator
Suction site pipe leaking. Check screw fittings and hoses. Operator
Safety valve is leaky. Check the setting; install new washers, if re-
quired.
Customer Service
Overflow valve is leaking or set too
low.
Check valve parts; replace damaged parts;
clean the dirt.
Customer Service
Valve in the pump defective, high-
pressure solenoid valve does not
close.
Replace defective components. Customer Service
High pressure pump is knock-
ing; manometer is swaying wild-
ly
Pump is sucking air. Check suction system and remove leaks. Operator
Valve plate or valve spring is defec-
tive.
Replace defective components. Customer Service
Advance pump calcified or defective. Check advance pump. Operator
Overflow valve opens and clos-
es continuously during 0 takeo-
ver
Leakage in the high-pressure pipe-
line system or hand spray gun leak-
ing.
Locate and seal leakage. Operator
Backflow valve or control piston
seal leaking in overflow valve.
Repair the overflow valve. Customer Service
Error code 01 is displayed Control board defective, green
LEDs are not blinking.
Check control board, replace if necessary. Customer Service
Error number 10, 11, 12, 13 is
displayed
Overflow protection switch of the
respective high pressure pump has
been triggered.
Rectify cause for over-loading. Customer Service
Error number 18, 19, 20, 21 is
displayed
Thermal sensor of the respective
motor has been triggered.
Rectify cause for over-loading. Customer Service
Error code 26 is displayed Overflow protection switch of the
advance pressure pump has been
triggered.
Rectify cause for over-loading. Customer Service
Error code 40 is displayed The water shortage safeguard in
the swimmer tank has got activated.
Remove the water shortage. Operator
Swimmer valve is jammed. Check swimmer valve for free movement. Operator
Error code 41 is displayed The temperature sensor in the
swimmer tank has been activated.
Reduce water infeed temperature. Operator
Error code 42 is displayed Leakage in the high-pressure pipe-
line system.
Locate and seal leakage. Operator
Too many consumer loads open at
the same time.
Close some consumer loads. Operator
Pressure sensor for high pressure
defective.
Replace pressure sensor. Customer Service
Error code 43 is displayed Leakage in the high-pressure pipe-
line system.
Locate and seal leakage. Operator
Pressure sensor for high pressure
defective.
Replace pressure sensor. Customer Service
Error code 45 is displayed Pressure too high (> 300 bar). Incorrect nozzle inserted. Insert correct nozzle. Operator
Pressure sensor for high pressure
defective.
Replace pressure sensor or cable. Customer Service
Fault number 47 is displayed
(with tripped flow switch, the ac-
tual pressure in the system is
significantly lower than the
nominal pressure)
Overflow valve adjusted incorrectly. Adjust the overflow valve correctly. Customer Service
Nominal pressure entered incor-
rectly in the display menu.
Enter nominal pressure correctly. Customer Service
Pressure sensor for high pressure
defective.
Replace pressure sensor or cable. Customer Service
Error code 48 is displayed HDC type incorrectly set in the dis-
play menu.
Set HDC type to Standard. Customer Service
Error code 50 is displayed Pressure sensor for high pressure
does not transmit signal.
Check pressure sensor and cable, replace if
necessary. Check board A5.
Customer Service
Error code 51 is displayed The flow switch provides a perma-
nent signal although no pump is
running.
Check flow switch, replace if necessary. Customer Service
Error code 52 is displayed Temperature sensor in the float
container does not transmit signal.
Check temperature sensor and cable, replace
if necessary. Check board A5.
Customer Service
27EN
27


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