9. Servicing the product
WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply before
starting any work on the product. Make
sure that the power supply cannot be
switched on unintentionally.
‐
After power off, wait the amount of time
stated on the label on RSI before work-
ing on the product. For further informa-
tion, see the installation and operating
instructions for RSI.
‐
All electrical connections must be car-
ried out in accordance with the sepa-
rate wiring diagrams delivered with the
system.
1. If the product is defective, see the installation and
operation instructions for MP 204 and RSI.
2. If the problem persists, contact Grundfos.
net.grundfos.com/qr/i/96650480
MP 204 I&O.
net.grundfos.com/qr/i/98464145
RSI I&O.
net.grundfos.com/qr/i/99116147
RSI advanced I&O.
9.1 Maintenance
DANGER
Electric shock
Death or serious personal injury
‐
Maintenance and inspection must be
performed by a qualified electrician.
DANGER
Electric shock
Death or serious personal injury
‐
Disconnect the power sources and en-
sure continuous disconnection during
maintenance of the drive and load.
If the variant has heatsinks attached, they must be
maintained for proper functionality. If the heatsinks
are covered in dust or any other materials, such as a
spider's web, the heatsink does not dissipate the heat
sufficiently.
To prevent this issue, frequently inspect the heatsinks
and clean or remove any material preventing airflow
from going through the fins of the heatsink.
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