Fault Finding - Grundfos MAGNA3 D Installation And Operating Instructions Manual

11.1.1 Operating indications related to a multipump system
When connecting Grundfos GO to a multipump setup and
choosing 'system view', Grundfos GO indicates the system's
operating status and not the status of the pump itself. Therefore,
the indicator light in Grundfos GO might differ from the indicator
light shown on the pump's operating panel. See table below.
Grundfos Eye, master pump
Green
Green/yellow
Yellow/red
Red

11.2 Fault finding

Reset a fault indication in one of the following ways:
• When you have eliminated the fault cause, the pump reverts to
normal duty.
• If the fault disappears by itself, the fault indication is
automatically reset.
The fault cause is stored in the pump alarm log.
CAUTION
Pressurized
Minor or moderate personal injury
- Before dismantling the pump, drain the system or
close the isolating valve on either side of the
pump. The pumped liquid may be scalding hot and
under high pressure.
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 disconnect switch to the Off
position. Type and requirements as specified in
national, state, and local regulations.
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.
If the power supply cable is damaged, it must be
replaced by the manufacturer, the manufacturer's
service partner or a similarly qualified person.
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Grundfos Eye, slave pump
Green
Yellow/red
Green/yellow
Red
Grundfos Eye, Grundfos GO
Green
Yellow
Yellow
Red