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Installation and operating instructions • Isar BOOST5 • Ed.06/2024-05 19
8 Faults, causes and remedies
DANGER
Danger of death due to electrical current!
The voltage of the external power supply is also present when the main
switch is switched off!
• Disconnect the plug from the power supply before carrying out any
work.
• Have electrical work carried out by a qualified electrician.
• Observe local regulations.
WARNING
Risk of injury due to improper repair!
• Only allow repairs to be carried out by qualified personnel.
Fault LED signal Remedy
Control panel does not light up. LEDs do not light up. Check whether main switch is switched on.
Check supply voltage and proper condition of the residual-cur-
rent device.
Pump does not start. System status LED lights up red
permanently.
Activate system via “On/Off” operating button.
System status LED flashes red. See “Alarm codes [”17]”.
System status LED lights up green
permanently.
System pressure does not drop below the set operating pressure.
Low water System status LED flashes red.
Operating status LEDs flash green.
Check that the suction is supplied with water.
Ensure that the suction is not clogged.
Fill the pump and allow the suction to work.
Short-circuit System status LED flashes red.
Operating status LEDs light up per-
manently green.
Ensure that the system is not blocked:
• Open the plug on the back of the motor and rotate the shaft.
Check that the cable, plug and socket are undamaged and that
there are no leakage currents.
Voltage too low System status LED flashes red.
Operating status LEDs flash green
in section “5”.
Voltage is lower than 15% below the value indicated on the rat-
ing plate. Ensure that the voltage is within the ±15% limit value.
9 Spare parts
Spare parts are ordered via customer service. To avoid return queries and incorrect orders,
the article number and production date must always be supplied. Subject to change
without prior notice!
10 Disposal
10.1 Information on the collection of
used electrical and electronic
products
Proper disposal and appropriate recycling of this product prevents damage to the environ-
ment and danger to your personal health.
NOTICE
Disposal in domestic waste is prohibited!
In the European Union this symbol may be included on the product, the
packaging or the accompanying documentation. It means that the elec-
trical and electronic products in question must not be disposed of along
with domestic waste.
Please note the following points to ensure proper handling, recycling and disposal of the
used products in question:
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