Maintenance

Warning:
All repair and service work has to be exclusively performed by qualified service technicians as live parts may be exposed when opening and/or removing coverings. Touching live parts may cause electric shock.

Disconnect power supply before cleaning;
Clean the surface with a dry cloth only;
Do not use liquid cleaner or compressed air;
Do not use solvent;
Check if the ventilation holes are blocked;
Depending on the environment, we recommend to professionally clean the device every 2 to 5 years.