> For the complete documentation index, see [llms.txt](https://docs.irs.systems/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.irs.systems/ltt/documentation/ltt-gui-manual/lttgui/systemerrors.md).

# System Errors

There are a couple of station errors which can happen during the execution of a test. The so called **system errors** are treated like [limit errors](/ltt/documentation/ltt-gui-manual/teststand/limittests.md) and have error numbers < 50.

{% hint style="warning" %}
Do not provide error numbers < 50 for your limit tests.
{% endhint %}

| Error Number | Meaning                                                            |
| ------------ | ------------------------------------------------------------------ |
| 0            | System error.                                                      |
| 5            | Power supply voltage limit error.                                  |
| 6            | Power supply current limit error.                                  |
| 9            | Temperature sensor limit error.                                    |
| 13           | Power fail error. Happens in case of an overall LTT power failure. |
| 16           | Power supply communication error.                                  |
| 18           | Temperature sensor communication error.                            |

Like with limit errors, you can set the error tolerance in [F6 dialog](/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f6errorconfiguration.md).


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.irs.systems/ltt/documentation/ltt-gui-manual/lttgui/systemerrors.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.