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.

Warning:
The grandMA3 processing unit has an air intake filter on the front.
Do not wash the filter.
Clean it using a vacuum cleaner only.

Disconnect power supply before cleaning;
Clean the surface with dry cloth only;
Do not use liquid cleanser 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.