Centralisation of enquiry processing

Hello everyone,

From the past, you are used to being able to comment on our articles and thus enter into direct exchange with us.

To ensure that all enquiries can be processed in a high-quality and timely manner, it is important to use a centralised channel for enquiries. We have therefore decided to deactivate the comment function in this service blog for the time being.

You can use our contact form Customer service (truma.com) to post enquiries or feedback. Detailed information is requested in advance, e.g. the serial number of the unit. This enables us to process your enquiries even more efficiently and quickly.

We would like to take this opportunity to thank our community for their constant friendly interaction with each other and with us.

Your Truma Team

PS: We will gladly continue to create articles on current topics for you so that you are always up to date.

Instructions for software updates on the Truma iNet X (Pro) Panel

You always want to be up-to-date? We recommend installing the latest available software version of the iNet X (Pro) panel. This is the only way to benefit from continuous system optimizations and to use new features. 

Requirement for panel updates: iNet X App on mobile device

Software updates can only be performed using the Truma iNet X App on a mobile device and bluetooth. An Internet connection is required for this. If an update is available for your panel, a corresponding message will be displayed in the app. 

Step-by-step instructions for installing software updates on the iNet X Panel

  1. If you haven’t already done so, install the free Truma iNet X app on your mobile device. You can see how this works further down in this article.  
  2. Connect your mobile device to the Truma iNet X via Bluetooth. The mobile device must remain within Bluetooth range of the Truma iNet X panel during the entire update process. 
  3. Before you start the update process, check if the mobile device has enough battery power. If necessary, connect it to an appropriate power supply.  
  4. To start the update, follow the instructions in the app and on the panel.  
  5. The update runs in the background and can take up to 15 minutes. During the update process, you can use your panel as usual.  
  6. When the update has been completed successfully, a corresponding message will be displayed on your panel. 
  1. The panel will reboot automatically after the update. 
  2. Done. Now you are up to date again. 

You can check the status of the software update or which software version is currently installed on your panel at any time in the device manager on your panel. 

If the update was not successful, then the last installed software will be used to ensure safe operation of the control panel. 

How to connect a mobile device to your iNet X Panel

The connection from the mobile device to the panel is established via Bluetooth. Therefore, the mobile device must be within range of the panel. 

You can establish a connection in just a few clicks: 

  1. Activate Bluetooth on the mobile device. If you have any questions about the settings of the mobile device, please contact the supplier.  
  2. To connect the app to the panel for the first time, open it on your mobile device and click the “iNet X App” tile on the panel display.  
  3. Follow the instructions of the setup wizard on the panel display and the instructions of the app on the mobile device. 

solved: iNet X app crash on iOS 16.1

Hello everyone,

some of you iPhone users have reported that the iNet X app crashes immediately after opening since the update to iOS 16.1.

To fix this, please update to app version 1.5.3.

Thank you for your help in resolving this issue – please give us feedback on version 1.5.3 in the comments if needed.

Video instructions for the Truma iNet X (Pro) Panel

The Truma iNet X (Pro) Panel* is the central control panel of the iNet X open system solution. Indeed, the panel forms the basis, allowing you to benefit from all the smart functions of the iNet X System, making your camper van smarter step by step.

Operation in simple steps: You’ll discover how to use your panel correctly in the following videos.

User interface and layout of the Truma iNet X Panel menu

In this video, you’ll discover:

  • How to operate the touch display
  • How to unlock your panel
  • How the main menu is laid out
  • How to access the settings
  • Where to find details on your appliance’s status, for example, to check the inside temperature
  • How to activate standby mode
  • How to navigate through the menu

Controlling your indoor climate with the Truma iNet X Panel

In this video, you’ll discover:

  • Which buttons are available in the panel for your indoor climate
  • How to switch automatic climate control on and off and control it
  • How to know if your room is being cooled or heated
  • How to access the choice of energy (gas or electric) (Note: The prerequisite here is that a Truma Combi is installed as an E version)
  • How to activate extra fast heating if you need a swift boost
  • How to adjust the fan speed
  • How to switch the system to the quietest mode
  • How to switch the fans on and off

Controlling hot water with the Truma iNet X Panel

In this video, you’ll discover:

  • How you start hot water mode
  • How to set three target temperatures and which target temperature is suitable for which use
  • How to access the choice of energy (gas or electric) (Note: The prerequisite here is that a Truma Combi is installed as an E version)
  • Which panel function allows you to heat water extra quickly

Understanding messages from the iNet X Panel and responding appropriately

In this video, you’ll discover:

  • How the menu for warning and error messages is laid out
  • How to correctly proceed with error messages
  • Where information on possible software updates is displayed
  • How to reset error messages

Any questions? Please share these in the comments area.

*There are two panels which are compatible with the iNet X System:

  • the Truma iNet X Panel (for retrofit) and
  • the Truma iNet X Pro Panel (is only installed ex works in new vehicles by the vehicle manufacturer).

Regardless of whether you have a Truma iNet X Panel or a Truma iNet X Pro Panel installed in your caravan: both offer the same user interface and are the central control panel of the Truma iNet X System.

Further information can be found on our website

New update for the Truma App (4.14.3) and Truma iNet Box (2.14.00)

This version is for app optimisation and minor bug fixes.

We look forward to your feedback on the new version.

Info to all Xiaomi users: Despite extensive testing on our part, there are currently still problems on Xiaomi devices. If you have not yet installed the app update, please wait. We are working hard on a solution and will inform you as soon as the problem has been solved.

Update 14.10.22: If any of you Android users already have the latest version installed and it doesn’t work, you can go back to the previous version 4.10.0 via this link


With this version, the app will work as it did before the update.
It is important that you perform the following steps:

  • uninstall the previously installed Truma App
  • then use the link to download the APK file of version 4.10.)
  • open and install the APK file from your files (downloads)
  • deactivate automatic updates for the Truma App via the Playstore

Fit for the start of the season

Finally the time has come. The seasonal number plates take effect. You can bring your vehicle out of winter storage or even finally inaugurate your brand new vehicle.

The best thing to do is to check all the installed equipment in good time, so you can prevent delays to your journey.

We show you which points to pay attention to so that the much-deserved start of your journey goes really smoothly.

Truma appliances:

  • Replace the air-conditioning filters (if fitted).
  • Start up the air conditioner for test purposes (if necessary, heat up the interior first, at least 18 – 20 °C).
  • Clean the installation space of the heater and the unit itself (vacuum, wipe carefully if necessary).
  • Check all water connections and devices for leaks (fittings, combi, therme, boiler).
  • Check whether the networked systems still have a connection (app, iNet Box, LevelControl, etc.).
  • Make a Mover test run. Does the swivelling on/off and the movement work?

What to do if a malfunction occurs?

  • Find out from reputable sources if there are measures you can take yourself. Feel free to do so via this blog, as well as our homepage and YouTube channel.
  • Contact your dealer or one of our service partners. These can be identified by the tool icon in the dealer search.
  • Contact Truma Service directly.
  • Allow sufficient reaction time to be able to rectify a fault.

What if you want to buy additional accessories or a spare part?

  • With the exception of the coolers, Truma does not offer its own shop.
  • Therefore, contact your dealer or one of our authorised dealers. These can be recognised by the Truma icon.

Entire vehicle:

  • Put the entire gas system into operation. Are the cooker, fridge, etc. working?
  • Clean the water system, i.e. the fresh water tank and all appliances with a water tank. We recommend using citric acid for this purpose.
  • – Make sure the battery is in order and fully charged (12V power supply).
  • Checks tyre pressure and condition
  • Look at the vehicle as a whole (lighting, validity HU)

Truma – the original

Camping is on everyone’s lips, the industry is booming.
The demand is high, the supply is growing.

Unfortunately, the money that can supposedly be made quickly has led to a number of black sheep jumping on the bandwagon, in addition to many qualified dealers.

Free riders sell products under our name that are not original Truma products.

We will therefore show you today how you can recognize original Truma devices.

  • the type plate: each of our products is provided with a type plate at the factory. In addition to information about the device, you will also find the manufacturer’s details and legal identifiers (e.g. CE):
  • the Truma logo: 70 years of company history is also symbolized by our Truma company logo. This can be found on each of our devices. Sometimes printed, sometimes glued on. But always easily recognizable.
  • Our outstanding service: For Truma original products, you receive a manufacturer’s warranty of 24 months in addition to the statutory warranty. In addition to our service partner network, we offer telephone support and mobile service technicians throughout Germany.
  • quality: Truma stands for quality and reliability, for transparency and information. Our official homepage www.truma.com is maintained with a lot of information for you. Product information, product pictures and contact details for us and our dealers and service partners can be found there.

Please feel free to contact us if you have any questions or uncertainties.

Use Combi-Heater in winter with or without water?

As a camper, questions arise during the winter season such as: “How do I make sure that the water in my heating system or vehicle does not freeze when I am not on site during the day?” or “Can I heat my camper or caravan without water in the boiler?

We answer both questions in this article.

If you are travelling with your vehicle in winter, you can choose between the above options to suit your needs. Both are possible, as long as the operation of the unit is adapted accordingly.

Option 1: If your motorhome or caravan is filled with fresh water, the heating should always remain active. As long as the frost monitor of the Combi, the FrostControl (FC), is exposed to an ambient temperature of >3°C, it remains closed and the water remains in the system. It is important here that the temperature is measured directly at the FC. Experience has shown that it is equally important that only the water runs out of the Combi when the FC is open. Whether the fresh water tank and all water pipes also run empty depends on the installation of the water supply by the vehicle manufacturer. This may or may not be the case. You should check this at your leisure before starting your journey.

You can set 5°C as the lowest room temperature on the heating control. If this is not sufficient to heat the FC because it has been installed further away from the Combi or a warm air pipe, a higher room temperature requirement should be set. This is possible with the CP plus from 5°C in 1°C steps. Simply approach a suitable value slowly. With the CP classic, with the two rotary knobs, level 1 also corresponds to 5°C, level 5 about 30°C. The other levels are in between. Level 2 should therefore be sufficient to keep the FC closed. Please note that such operation is only recommended during a journey. It is not a suitable means of keeping the vehicle frost-free throughout the winter. Short heating times of the heater promote the formation of condensation in the exhaust tract.

If the installation space of the FrostControl is too far away from the heater or completely unheated, a separate heating element for the FC can be purchased from our authorised dealers.

Option 2: If you are travelling without water in the system, the Combi can also be operated. The only important thing here is to set only room heating as a requirement for the Combi. The water heating programme must remain inactive. Make sure that the water tank of the Combi is correctly emptied. Residual water in the combi can get very hot very quickly. The resulting water vapour can irritate the temperature sensors of the heater and lead to a warning message “Water overtemperature detected”. For this reason, we recommend that you leave the FC open when using the vehicle in this way. This way, the water can find its way out of every corner of the fresh water supply during a winding journey. Optionally, you can help by using light compressed air or a balloon that has been put over and filled at the open water taps.

Please note: we recommend both modes of operation only on one trip. Operating the heater in one of the specified options for months should be avoided. The reason for this is that this type of use does not correspond to the intended use of an appliance for camping needs. In addition, under unfavourable conditions, condensation can collect in the exhaust pipe and disrupt the proper operation of the heating system.

With these tips, you’ll be well prepared, even when it’s cold outside. We wish you a wonderful winter holiday.

Feedback on app version 4.12.5 (iOS only)

Our app version 4.12.5 is the reaction to a bug that occurred under iOS 15.1.

The SMS function was affected, specifically the generation of an SMS (remote control/status query).

Please let us know your experience with the new app version. Is the (multiple) generation of SMS messages possible again without restrictions?

Please state in your feedback which iPhone is being used and whether the system is on the latest software version (app version 4.12.5, iNet Box FW 2.09.06).

Thank you very much for your participation.

Truma App – iOS 15.1

Hello everyone,
Thank you very much for your lively feedback.
Since the first report about a crash in the SMS generation under iOS 15.1, we have been working flat out on a solution. This was in the field test until today – and could now finally be released for you.

As usual, you can update the Truma App to version 4.12.5 via the Apple Store and the issue should now be resolved.


your Truma iNet Team