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c0ffeeca7 merged 3 commits into from
Apr 29, 2026
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Add error and alert sensors to Fumis integration #45043

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Add error and alert sensors to Fumis integration
frenck Apr 27, 2026
eb5ed9c
Potential fix for pull request finding
frenck Apr 27, 2026
e36132b
Merge next into frenck-2026-0447, resolve conflict in fumis.markdown
Copilot Apr 29, 2026
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33 changes: 32 additions & 1 deletion source/_integrations/fumis.markdown
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Expand Up @@ -92,7 +92,9 @@ The integration provides sensors that give you insight into your stove's operati

- **Temperature**: The current room temperature as measured by your stove.
- **Stove status**: A simplified view of what your stove is doing (off, heating up, ignition, burning, eco, or cooling).
- **Detailed stove status**: The precise operational phase of your stove, useful for advanced automations.
- **Detailed stove status**: The precise operational phase of your stove, useful for automations.
- **Alert**: The currently active alert on your stove. Shows "No alert" when there are no warnings. See the [alert codes](#alert-codes) below.
- **Error**: The currently active error on your stove. Shows "No error" when everything is fine. See the [error codes](#error-codes) below.
- **Fuel level**: How much fuel is left in the pellet hopper, shown as a percentage.
- **Power output**: The current thermal output of your stove in kilowatts.
- **Combustion chamber**: The temperature inside the combustion chamber.
Expand Down Expand Up @@ -121,6 +123,35 @@ Some additional sensors are available but disabled by default because they are p
- **Power level**: Set the stove's heating power from level 1 (lowest) to 5 (highest). A higher power level means more pellets are fed into the combustion chamber, producing more heat. The actual thermal output in kilowatts adjusts gradually after changing the power level.
- **Fan speed**: Adjust the fan speed from 0 to 5. This controls the airflow through the stove and should typically not need to be changed. This entity is disabled by default and only available on stoves with a controllable fan.

### Alert codes

The alert sensor shows the currently active alert on your stove. Alerts are less critical than errors and typically indicate something that needs your attention. The following alert codes are recognized:

- **Low fuel level** (A001): The pellet tank is running low. Time to refill.
- **Service due** (A002): Your stove is due for regular maintenance.
- **Flue gas temperature warning** (A003): The flue gas temperature is elevated. Consider cleaning the chimney or heat exchanger.
- **Low battery** (A004): The controller battery is low. Contact your service technician for a replacement.
- **Speed sensor failure** (A005): The speed sensor is not working correctly. Contact your service technician.
- **Door open** (A006): The combustion chamber door is open. Close the door.
- **Airflow sensor malfunction** (A007): The airflow sensor is malfunctioning. The stove is operating in a limited mode.

### Error codes

The error sensor shows the currently active error on your stove. When an error occurs, the sensor state changes to a descriptive name, and the original device error code is available as a `code` attribute on the sensor. The following error codes are recognized:

- **Ignition failed** (E101): Ignition failed, water overtemperature, or backfire protection triggered.
- **Chimney or burning pot dirty** (E102): The chimney or burning pot needs cleaning, or the stove was manually stopped before flame detection.
- **Sensor T02 malfunction** (E105): Temperature sensor T02 is malfunctioning or disconnected.
- **Sensor T03/T05 malfunction** (E106): Temperature sensor T03 or T05 is malfunctioning or disconnected.
- **Sensor T04 malfunction** (E107): Temperature sensor T04 is malfunctioning or disconnected.
- **Safety switch tripped** (E108): The safety thermostat (STB) has tripped. Reset and restart the stove.
- **Pressure sensor off** (E109): The pressure sensor has switched off. Reset and restart the stove.
- **Sensor T01/T02 malfunction** (E110): Temperature sensor T01 or T02 is malfunctioning or disconnected.
- **Sensor T01/T03 malfunction** (E111): Temperature sensor T01 or T03 is malfunctioning or disconnected.
- **Flue gas overtemperature** (E113): The flue gas temperature is too high. Clean the chimney or heat exchanger.
- **Fuel ignition timeout** (E114): The fuel did not ignite in time. The burning pot may be empty, or the pellet tank needs refilling.
- **General error** (E115): A general error has occurred. Contact your service technician.

## Examples

Your pellet stove works with all the features Home Assistant has to offer. Here are a couple of automation examples to get you started. You could also combine your stove with presence detection to heat only when someone is home, pair it with a weather forecast to prepare for cold nights, or use voice commands to adjust the temperature from the couch.
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