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Electronic devices can be impaired or damaged by the strong magnetic field of the rotor!
When assembled, the rotor's magnetic field is guided in the motor's iron core. However, there is no magnetic
field outside the motor that is harmful to health or affects the motor.
DANGER
Risk of fatal electrical shock!
Even without the module (without electrical connection), there may be dangerous contact
voltage at the motor contacts.
It is not permissible to dismantle the module!
10
Faults, causes and remedies
10.1
Troubleshooting
Troubleshooting must only be carried out by a qualified installer, and work on the electrical connection must
only be carried out by a qualified electrician.
Faults
Pump is not running with
switched-on power supply.
Pump is not running with
switched-on power supply.
Pump makes noises.
Pump makes noises.
Building does not get warm.
Building does not get warm.
Manual deblocking
•
Version F01 and F02 (equipped with an operating button):
Press and hold the operating button for 4 seconds. The deblocking function is initiated and lasts for a maxi-
mum of 30 minutes. The following animation appears during this process:
76
Causes
Fuse protection defect.
Pump has no voltage.
Cavitation due to insufficient suc-
tion pressure.
Cavitation due to insufficient suc-
tion pressure.
Heat output of the heating sur-
faces too low.
Heat output of the heating sur-
faces too low.
Installation and operating instructions • Wilo-Para MAXO/-G/-R/-Z • Ed.04/2024-11
Remedies
Check the fuse protection.
Reconnect the voltage.
Increase the system pressure
within the permissible range.
Check the delivery head setting
and set it to a lower head if neces-
sary.
Increase setpoint.
Change the control mode from
Δp-v to Δp-c.
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