Turbo Energy (Deye) inverter display issue

[Emmanuel D]

Hi everyone,

I'm the "happy" owner of a "Turbo-Energy Hybrid Series 48V 5.0" inverter. Turbo-Energy is a spanish brand selling Deye products.
This inverter has been working fine from July 2023 to January 2025 in Cabo-Verde archipelago. Since then, display works for a few seconds only when switching on the inverter and then stops. The 4 leds above the screen are also off after a few seconds.
I've got a replacement display from the supplier in France, brought it onsite and installed it on the inverter. Unfortunately, the new display react exactly like the original one : it stops after a few seconds.
Obviously, issue is coming from somewhere else but I'm totally ignorant in electronics and I don't know where to look and what to check. 

Except this display issue, the system is working and solar energy supply enough electrical power for house consumption.

Display behavior video : https://drive.google.com/file/d/1dJXvx7JWX1V_IiUsDYDIekqQGKwYtYkz/view?usp=sharing

Thanks in advance for your help.

[DavidAlberto]

Hi, first you should check the connections and wiring for possible corrosion or bad connections. Is the equipment exposed to weather conditions? Is the equipment exposed to high-temperature conditions? Normally, equipment will deactivate certain components as a protective measure if they detect that the operating temperature is too high.

If you have a technician who can check the equipment's power supplies, that would also be productive, as perhaps the HMI power supply is not stable, and that is why it turns off. Another option you can try is to disconnect all power supplies from the equipment and let it purge for a few minutes, then reconnect everything and check if it works.

If, after all these checks, the result is the same, it is likely that you have a problem with the control board (to which the HMI is connected).

Here is the manual in case you manage to detect any fault code during that brief period when the screen is visible: https://assets-global.website-files.com/6471580f4ea1a1165d613a2e/65004a583811eee6537ab425_MANUAL%20DE%20INSTRUCCIONES%20Hybrid%20Series%2048V%205.0%20ES%20V26.pdf

[Emmanuel D]

Hola, muchas gracias por su respuesta.

This inverter operate in a room the house where it is protected from weather conditions (see attached picture).
When changing the original HMI to a new one, I did not notice any loosen or corroded connections. Maybe should I check this more carefully...
Doing this HMI change gave plenty of time for the power supply to purge and still the result was the same.

Would a list of boards with their respective functions exist for this inverter ?

[DavidAlberto]

Hola, muchas gracias por su respuesta.

This inverter operate in a room the house where it is protected from weather conditions (see attached picture).
When changing the original HMI to a new one, I did not notice any loosen or corroded connections. Maybe should I check this more carefully...
Doing this HMI change gave plenty of time for the power supply to purge and still the result was the same.

Would a list of boards with their respective functions exist for this inverter ?

Since it's often difficult to find such specific details, I recommend contacting the manufacturer or supplier and explaining the problem to them. They should quickly be able to identify the issue and offer you the possible solution.