Published by Telkonet Inc

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  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 Symphony Sonata

1. Connect to a Smart Thermostat by Telkonet and set your comfort settings, cue up your household schedule, and save money and energy while you’re away.

2. The temperature, the thermostat mode (heat, cool, auto) and fan are all controllable via your phone.

3. Check on your thermostat from afar and adjust your home climate.

4. Save money and energy while you’re away with Smart Away.

5. Today’s schedule always appears on the home screen.

6. Symphony Sonata is the key to keeping your home climate simple.

7. Pre-heat or pre-cool your house as you head home. Changing it is easy.

8. You can update your schedule or just override it temporarily.

9. Set a schedule that works for everyone.

10. Mom, Dad, the babysitter; invite all your household members.

11. It automatically adjusts the temperature if your home has been empty for hours.

Symphony Sonata Customer Insights

1. I called the help phone number and it went ti a voicemail.Bad app, full of glitches, constantly logs off, no updates or patchesTerrible connection issues, however very convenient when it works but unfortunately it never works.Does not pair thermostat with phone.

2. It will not let me even see my thermostat.Bad app the sensitive touch doesn't work properly and the main menu doesn't show the whole screen so I can't see it how many degrees are.

3. All you see is the number 7 only first numberThis app sucks! It drops my thermostat all the time! And it doesn't even display the numbers correctly.

4. And now it doesn't even connect to my damn thermostat anymore.Trash, it disconnects repeatedly so you can't use it.

5. It's too bad that I can't adjust the fan speed though OR set the temperature lower than 68 degrees F from the thermostat or app.

6. I wish it worked better because I appreciated being able to adjust the temperature from the bedroom upstairs w/o having to come down in the middle of the night.

7. The app disconnected from my thermostat for no discernable reason, and now won't let me reconnect it to the app.

8. I am a hot sleeper and I am literally cooking at night because of how hot it is.When it's working its great, you can control your temperature in your home from anywhere.

9. Contacted developer but no resolution.The app doesn't work.

10. Then you have to Uninstaller the app and try to reconfigure the thermostat.I can't even log in.

11. Tried to reset my password and they didn't send a code.

Steps to Troubleshoot & Fix Symphony Sonata Issues

1. Fix Symphony Sonata Not Working/Crashes/Errors/Unresponsive & Black/White screen:


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


2. Fix Symphony Sonata Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Symphony Sonata 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 Symphony Sonata not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Symphony Sonata may not be able to connect to the Internet when running in the background.

Reported Issues

Note: Issues displayed have already been sent to the developer and are older than 7 days.

  • The air conditioning control unit on the way will not connect through the app, the app says “this thermostat has not been commissioned for this property. Please contact property management for support

    — by Nathaniel 2 years ago

  • Cant get app on phone to hook up thermostat

    — by Desiree Durham 3 years ago