Frequently Asked Questions

Growatt Q & A

  • Growatt – Firmware – where to find

    Follow the link to your particular model (note, don’t update firmware just because you feel good about it, unless you have a specific problem you are trying to fix)

    https://watts247.com/manuals/gw/Firmware/ 

    BE SURE YOU HAVE THE CORRECT FIRMWARE FOR THE CORRECT MODEL. WE WILL NOT BE HELD RESPONSIBLE

    Here is a video as an EXAMPLE updating the 6000T, the procedure is similar for other models (make sure you have the correct firmware downloaded)

    Firmware Update 6000T 

  • Growatt Programming – understanding the settings (Video)

    Secret to the settings 

    https://www.youtube.com/watch?v=oDiva1SJwpc 

  • Fault code 04 and 56 and 19, on 24V unit or Fault code 06 on 48V unit on the 3000TL 24P and 48P

    Normally , setting 10 should be "2 "for 24V models and "4" for 48V models

    the 24P and 48P use the same firmware and control board. this setting is the only thing that differentiates

     1. Press “UP” and “DOWN” at the same time 

      

    2. Input password “820” and enter the setting 10

      

    3. Press “ENTER”, revise battery number to be
    2 pcs (4pcs for 48P) and confirm by pressing “ENTER”
     

      

    4. Exit 

      

    5. Shut down and restart the inverter  

  • Voltage Calibration Procedures for 3000TL Models, 24P, 48P, LVM-ES and 5000ES

     Adjust or calibrate display values 

      

    1. Press “UP” and “DOWN” at the same time 

      

    2. Input password “111” and enter. 

      

    3. Scroll through to the parameter that
    requires calibration. NOTE A prefix is to Add, S Is to subtract the
    "value" e.g 1.1 in the suffix
     

      

    4. Exit 

      

    5. Shut down and restart the inverter  

  • Factory Reset procedure for DVM 6000T to 12000T models

     Hold down the ENTER and Escape buttons
    simultaneously for more than 5 sec.
     

    The unit will reset to factory defaults  

  • Factory Reset procedure for 3000TL models 24P, 48P and LVM-ES, and 5000ES models

     Factory reset procedure for 24P 48P and LVM-ES 

      

    1. Press “UP” and “DOWN” at the same time 

      

    2. At "PAS" screen prompt Input
    password “305”
     

      

    3. Press “ENTER” 3X slowly 

      

    4. Press "ESCAPE" once 

      

    (Remove solar and AC power, turn inverter
    switch off and allow to turn off after 20 to 60 seconds
     

      

    5. Shut down and restart the inverter) 

  • Growatt Fault Codes

    Inverter Fault Codes …Troubleshooting 

    https://watts247.com/docs/inverter-fault-codes-troubleshooting/ 

MPP Solar Q & A

  • MPP Solar – Firmware – Where to find

    Follow the link to your particular model (note, don’t update firmware just because you feel good about it, unless you have a specific problem you are trying to fix)

    https://watts247.com/manuals/mpp/Firmware/ 

    BE SURE YOU HAVE THE CORRECT FIRMWARE FOR THE CORRECT MODEL. WE WILL NOT BE HELD RESPONSIBLE

    Here is a video as an EXAMPLE updating the LVX6048WP, the procedure is similar for other models (make sure you have the correct firmware downloaded)

    LVX6048 WP Firmware  

  • MPP Solar Programming (this is a Growatt Video, but same principles apply)

    Secret to the Settings

    Some setting numbers may vary, but the setting description is similar

    https://www.youtube.com/watch?v=oDiva1SJwpc  

  • MPP Solar Factory Reset Procedures

    The Manual Way.

    take the manual, and each setting will be denoted by "(Default)" , go through and manually set each setting back to factory defaults.

    Using the PC software.

    Watchpower for all Models EXCEPT the Hybrid 2424, and LVX6048WP, and LVX6048

    Solar Power ONLY for models shown above

    software can be downloaded from MPPSOLAR.COM

    there is a tab called "Factory Defaults" or similar click that

Wiring Diagrams/ Breaker Sizing / Panel Configurations

Which Inverter to choose?

  • Inverter Comparison and Spec Sheet

    This is a link to a Google Docs on a comparison sheet of all inverters available

    click here 

General Troubleshooting / Power issues

Videos