> For the complete documentation index, see [llms.txt](https://docs.mclimate.eu/mclimate-lorawan-devices/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mclimate.eu/mclimate-lorawan-devices/devices/mclimate-fan-coil-thermostat-fct/mclimate-fan-coil-thermostat-device-communication-protocol/general-display-and-power-recovery/temperature-sensor-errors.md).

# Temperature sensor errors

## Get internal temperature sensor error

{% hint style="info" %}
This command is available for devices with firmware version ≥ 1.9.
{% endhint %}

You can read the internal temperature sensor errors with the following command.

When an error occurs in the internal temperature sensor, this command is sent together with the keepalive of the device.

{% tabs %}
{% tab title="GET" %}

#### Get the status of the device.

<table data-header-hidden><thead><tr><th width="128.99999999999997"></th><th width="188"></th><th></th></tr></thead><tbody><tr><td><strong>Byte index</strong></td><td><strong>Sent request</strong></td><td><strong>Received response</strong></td></tr><tr><td>0</td><td>7C – Command code</td><td>7C – Command code</td></tr><tr><td>1</td><td> </td><td><p>00: Internal temp. sensor no errors.<br>01: Internal temp. sensor detection error.</p><p>02: Internal temp. sensor initialization error.</p><p>03: Internal temp. sensor measurement error.</p></td></tr></tbody></table>

**Example command:** 0x7C;

**Example response:** 0x7C02 – Internal temperature sensor initialization error.
{% endtab %}
{% endtabs %}

## Get external temperature sensor error

{% hint style="info" %}
This command is available for devices with firmware version ≥ 1.9.

This command is applicable when using an external temperature sensor (10K NTC).
{% endhint %}

You can read the external (10K NTC) temperature sensor errors with the following command.

When an error occurs in the external (10K NTC) temperature sensor, this command is sent together with the keepalive of the device.

{% tabs %}
{% tab title="GET" %}

#### Get the status of the device.

<table data-header-hidden><thead><tr><th width="128.99999999999997"></th><th width="188"></th><th></th></tr></thead><tbody><tr><td><strong>Byte index</strong></td><td><strong>Sent request</strong></td><td><strong>Received response</strong></td></tr><tr><td>0</td><td>7D – Command code</td><td>7D – Command code</td></tr><tr><td>1</td><td> </td><td><p>00: External temp. sensor no errors.<br>01: External temp. sensor open circuit error.</p><p>02: External temp. sensor short circuit error.</p><p>03: External temp. sensor internal module error.</p><p>04: External temp. sensor measurement error.</p></td></tr></tbody></table>

**Example command:** 0x7D;

**Example response:** 0x7D01 – External temperature sensor open circuit error.
{% endtab %}
{% endtabs %}


---

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