# Errors

Source: https://help.malighting.com/grandMA2/en/help/key_ost_errors.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.

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If an error occurs, it is displayed in red. 

The following demonstrates an error in the Normal View.

**Requirement:**

- Add MA NDPs to the network configuration

For more information see [Adding devices to your session](/grandma2/key_network_session_add_device/).

- Open **MA Dimmer Network** 

For more information on how to access the different views see [Network dimmer](/grandma2/key_ost_network_dimmer/). 

For more information on the display of various views see [Views](/grandma2/key_ost_views/). 

![](/img/grandma2/window_error_normal-view_v3-3-939842.png)

_Error displayed in the Normal View_

If an error occurs, the entire rack turns red.

Navigate down in the hierarchy to detect the error. 

![](/img/grandma2/window_network-dimmer_error-in-crate_v3-3-a07d97.png)

_Error in crate 1_

![](/img/grandma2/window_network-dimmer_error-in-module_v3-3-1d2fa7.png)

_Error in module 1 and 2_

![](/img/grandma2/window_network-dimmer_error-in-dimmers_v3-3-9cda26.png)

_Error in dimmers 1 and 2_

For more information on how to navigate in the hierarchy see [Network dimmer](/grandma2/key_ost_network_dimmer/). 

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## []()Confirm Errors

Confirm Errors is displayed in the title bar of the window **MA Network Dimmer** and is used to temporarily mask errors.

**Hint:**\
To view the error messages, set No Load, Fuse, Overload, Excess DC to **On** when editing. For more information see the [setting Fuse in Views](/grandma2/key_ost_views/#fuse). 

1. To mask an error in the view, select the rack that displays the error. 
2. Tap Confirm Errors. 
3. The error displayed in red now turns dark green.

![](/img/grandma2/window_network-dimmer_confirm-errors_v3-3-283155.png)

_Confirm errors_

4. To toggle the error back to red, tap Confirm Errors once again.