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Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06
Warning: W573
Communication between display
and electronic module interrupted
Please check user manual
Fig. 30: Warning
NOTICE
As the Warning 573 reflects a communication issue between Pump and
the Display, it appears differently on the Display than all other warnings.
The following Screen is show on the Display:
19
Maintenance
Safety carried out by qualified personnel only!
DANGER
Risk of fatal injury!
There is a risk of fatal injury from electric shock when working on
electrical devices.
Work on electrical devices may only be carried out by electricians ap-
proved by the local electricity supplier.
Before working on electrical devices, switch them off so that they are
voltage-free and secure against reactivation.
Any damage to the pump connection cable should only ever be rectified
by a qualified electrician.
Never use an object to poke around the openings on the electronic mod-
ule or motor and never insert anything into the module or motor.
Follow the installation and operating instructions for the pump, level
control device and other accessories!
DANGER
Risk of fatal injury!
The permanently magnetised rotor inside the motor presents an acute
danger to persons with pacemakers. Non-observance results in death
or the most serious of injuries.
Persons with pacemakers must follow the general behavioural guidelines
that apply for handling electrical equipment when working on the pump!
Do not open the motor!
Only allow Wilo customer service to dismantle and install the rotor for
maintenance and repair work!
Only allow persons who do not have a pacemaker to dismantle and install
the rotor for maintenance and repair work.
NOTICE
The magnets inside the motor do not pose a danger provided the motor
is completely mounted. As such, the pump assembly does not pose a
special danger to persons with pacemakers, who can safely approach a
drive without any restrictions.
