# Maintenance

Source: https://help.malighting.com/grandMA3/2.3/HTML/key_consoles_maintenance.html
This is grandocs, an unofficial mirror of MA Lighting documentation. For authoritative or safety-relevant information, cite the canonical page on help.malighting.com.

---
|                                           |                                                                                                                                                                                                                                 |
| ----------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/img/grandma3/2-3/warning-b3b0cc.png) | **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.  |

|                                           |                                                                                                                                                                                       |
| ----------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/img/grandma3/2-3/warning-b3b0cc.png) | **Warning:** The grandMA3 full-size, the grandMA3 light, and their CRV versions have an air intake filter on the back.  Do not wash the filter. Clean it using a vacuum cleaner only. |

|                                                  |                                                                                                                        |
| ------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------- |
| ![](/img/grandma3/2-3/important_gray-f4dfbc.png) | **Important:**                                                                                                         |
|                                                  | The intervals between maintenance may differ depending on the frequency of transport and the operational environment.  |

 

- Disconnect power supply before cleaning; 
- Clean the surface using dry cloth only; 
- Clean the wrist rest using a damp 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 once a year.