Servicing The Product - Grundfos MAGNA3 Installation And Operating Instructions Manual

Servicing the product

WARNING
Electric shock
Death or serious personal injury
- Switch off the power supply for at
least 3 minutes before you start any
work on the product.
- Lock the main switch in position 0.
Type and requirements as specified
in EN 60204-1, 5.3.2.
WARNING
Electric shock
Death or serious personal injury
- Make sure that other pumps or
sources do not force flow through
the pump even if the pump is
stopped. This will cause the motor
to act like a generator, resulting in
voltage on the pump.
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