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)
Growatt Programming – understanding the settings (Video)Secret to the settings
Growatt Wifi TroubleshootingFault code 04 and 56 and 19, on 24V unit or Fault code 06 on 48V unit on the 3000TL 24P and 48PNormally , 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 5000ESAdjust 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 suffix4. Exit
5. Shut down and restart the inverter
Factory Reset procedure for DVM 6000T to 12000T modelsHold 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 modelsFactory 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 seconds5. Shut down and restart the inverter)
Growatt Fault CodesInverter 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)
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
MPP Solar Factory Reset ProceduresThe 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
MPP Solar Fault CodesWiring Diagrams/ Breaker Sizing / Panel Configurations
- Wiring Size Calculations AWGSolar Panel Configuration. Series vs ParallelWiring into your Home/ Panel IntegrationSolar Panel Breaker CalculationsGenerator Charging / Utility Charging TipsAC Breaker CalculationsInverter Wiring Diagrams / Single / Split PhaseBattery Balancer / Equalizer DiagramsBattery Wiring DiagramsPV Combiner Box Diagrams
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
General Troubleshooting / Power issues
- Inverter Wont Turn on
https://watts247.com/frequent-topics/inverter-power-on-troubleshooting/
Please follow this troubleshooting flowchart first
Videos
- All Videos
- https://watts247.com/videos/watts247-videos/
- Secret to the Settings Growatt and MPP Solar (MPP SOlar has the same setting names but differnt numbers ) GroWatt SPF3000TL LVM-48p Secrets of the Settings (updated)