Installation and operating instructions Wilo-Para STG
45
en
Activating factory
setting
The factory setting is activated by pressing and holding
the operating button whilst switching off the pump.
• Press and hold the operating button for at
least 4 seconds.
All LEDs flash for 1 second.
The LEDs for the last setting flash for 1 second.
When the pump is switched on again, the pump runs
using the factory settings (delivery condition).
8 Decommissioning
Shutting down
the pump
Shut down the pump immediately if the connecting
cable or other electrical components are damaged.
• Disconnect the pump from the power supply.
• Contact Wilo customer service or a specialist technician.
9 Maintenance
Cleaning
• Carefully remove dirt from the pump on a regular basis
using a dry duster.
• Never use liquids or aggressive cleaning agents.
10 Faults, causes and remedies
The troubleshooting must only be carried out by a qual
-
ified specialist, and work on the electrical connection
must only be carried out by a qualified electrician.
Faults
Causes
Remedy
Pump is not run
-
ning although
the power supply
is switched on
Electrical fuse
defective
Check fuses
No voltage supply
at pump
Rectify the power interruption
Noisy pump
Cavitation due to
insufficient suction
pressure
Increase the system pressure within
the permissible range
Check the delivery head and set it to
a lower head if necessary
Building does
not warm up
Thermal output of
the heating surfaces
is too low
Increase setpoint
Change the control mode from Δp-c
to constant speed
Содержание Para STG
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