Published by Danfoss A/S on Oct 10, 2023

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Why should I report an Issue with Danfoss Eco™?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Danfoss A/S to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About Danfoss Eco™

1. Danfoss Eco™ gives you complete in-home control of your radiator heating via Bluetooth, and is the perfect stand-alone solution if you live in a small apartment or house. 
Download the Danfoss Eco™ App now and enjoy home heating of tomorrow:

- Adjust home heating easily and intuitively with the remote you know the best
- Set the temperature to fit your rhythm and enjoy superior thermal comfort
- Save energy by automatically lowering the temperature when you do not need it

The Danfoss Eco™ App is compatible with Danfoss Eco™ 2nd generation Bluetooth thermostat. 

Connecting your mobile device with your Danfoss Eco™ is easy and lets you control your Danfoss Eco™ thermostat from distances up to 10 meter depending on the environment in which it is installed.

2. If you need support or have any questions about the Danfoss Eco™ App, please visit smartheating. danfoss. com

Do you want to try the app before buying your Danfoss Eco™ thermostats, then simply download the Danfoss Eco™ App and try it out in Demo Mode.

Danfoss Eco Customer Insights

1. The other side to this is that a short press might lower temp to low..Okay, I like the concept, but there are some things that should be improved: - when I open a list of my thermostats, names are dark gray until a phone gets a connection with them - it would be good to have some indicator that the phone is trying to connect with other thermostats to avoid confusion and mindless clicking - same list of thermometers could be a bit bigger - it would be good to have all of them connected at the same time, so I can easily apply the same settings to all of them at the same time - good to have a list of my thermometers, where I can see last set settings for each of them, even if the phone is not connected to them Feel free to message me if you need some help or more info, I would be happy to help with my experience in software development and UX.Ok, but manauls are not readily showing all feat...

2. When it comes to actually managing a device I'm not sure if it's a hardware or a software issue, but the schedule doesn't seem to work as my radiators are on all the time, even when the the room temperature is way higher than what the thermostat is set to.

3. BUT it does not control the temperature as expected, we hope this is due to too small radiators, which we will upgrade.Very useless App, cannot make a group, app keep crashing, very slow to connect to Bluetooth.

4. Edit: Updated my review to 1 star because this product is terrible.Can't really connect to the thermostats easily, because you either have to wait up to a minute or so until it connects, or walk to the radiator to rotate the knob, somehow triggering a connection.

5. With the price of each thermostat 400 Dkk / 53 Euro/ 60 Usd, I bought 11 of them, I expected something much better.The app takes too long to connect to the thermostats.

6. Then for every time you want to change the temperature/schedule, it cannot connect, not before you do Add Danfoss Eco again, and this might fail multiple times before it finally connects.

7. Likewise, it would be nice being able to control every thermostat in the house in a single way, rather than having to spend several minutes to go over individual thermostats.

8. Also, it seems to be only possibly to schedule two separate temperatures.Terrible app, takes forever to connect to the thermostat and the UI is not intuitive at all.

9. If Danfoss doesn't want to update the app then either stop selling the thermostats or give other devolopers access via an APIOk interface.

10. I.e. living room could contain living room left and living room right thermostats, and thus allow you to set them at the same time.

11. Why having an app when each time you need to go closer to the thermostat to adjust it, If I'm there already it's easy to adjust manually.

Steps to Troubleshoot & Fix Danfoss Eco Issues

1. Fix Danfoss Eco Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Danfoss Eco: Restarting the app will resolve most errors.
  2. Update the Danfoss Eco App. Here is how:
    1. On Android goto PlayStore » Search for "Danfoss Eco" » Open Danfoss Eco™ » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Danfoss Eco » click "UPDATE".
  3. Clear Danfoss Eco™ app cache: Clearing cached data will force your app to retrieve the latest data directly from Danfoss Eco servers.
    1. On Android, goto Settings » Apps » Select "Danfoss Eco™" » click Storage » click "Clear Cache".
  4. Check Danfoss Eco app permissions. If any of these permissions required to use your device's features are disenabled, Danfoss Eco might not work.
  5. Uninstall and reinstall Danfoss Eco. If nothing else has worked, completely uninstall Danfoss Eco then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Danfoss Eco not working


2. Fix Danfoss Eco Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Danfoss Eco be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Danfoss Eco not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Danfoss Eco may not be able to connect to the Internet when running in the background.

Reported Issues