What should I do if my Growatt MID 15KTL3-XH Inverter is showing Error 301?
- HhhernandezAug 26, 2025
If your Growatt Inverter displays Error 301, check the AC terminals. If the error message continues, contact Growatt support for further assistance.

What should I do if my Growatt MID 15KTL3-XH Inverter is showing Error 301?
If your Growatt Inverter displays Error 301, check the AC terminals. If the error message continues, contact Growatt support for further assistance.
What to do if my Growatt MID 15KTL3-XH Inverter displays Error 309?
If your Growatt Inverter shows Error 309, check the grid frequency and restart the inverter. If the error message persists, please contact Growatt support.
How do I troubleshoot Warning 400 on my Growatt MID 15KTL3-XH?
If your Growatt Inverter is displaying Warning 400, after shutdown, check the connection of the fan and replace the fan. If the error message persists, please contact Growatt support.
How to fix Warning 204 on a Growatt MID 15KTL3-XH Inverter?
If your Growatt Inverter is showing Warning 204, after shutdown, check the dry contact wiring. If the error message persists, please contact Growatt support.
What causes Warning 203 on a Growatt Inverter?
If your Growatt Inverter is displaying Warning 203, check if the PV1 or PV2 wiring is short-circuited. If the error message persists, please contact Growatt support.
How to troubleshoot Warning 406 on my Growatt MID 15KTL3-XH?
If your Growatt Inverter displays Warning 406, try restarting the inverter. If the error message persists, please contact Growatt support.
What to do if Growatt Inverter shows Warning 202?
If your Growatt Inverter is showing Warning 202, after shutdown, check the DC SPD. If the error message persists, please contact Growatt support.
How to fix Warning 201 on a Growatt MID 15KTL3-XH?
If your Growatt Inverter shows Warning 201, after shutdown, check the string terminal wiring. If the error message persists, please contact Growatt support.
What to do if Growatt MID 15KTL3-XH Inverter is showing Warning 404?
If your Growatt Inverter displays Warning 404, try restarting the inverter. If the error message persists, please contact Growatt support.
How to resolve Error 303 on a Growatt MID 15KTL3-XH?
If your Growatt Inverter shows Error 303, check if the PE cable is securely connected. If the error message persists, please contact Growatt support.
| Model | MID 15KTL3-XH |
|---|---|
| Rated Power | 15000 W |
| Max. DC Input Voltage | 1100 V |
| Nominal AC Power | 15000 W |
| Total Harmonic Distortion | < 3% |
| DC Connection Type | MC4 |
| Protection Class | I |
| Topology | Transformerless |
| Input Voltage Range | 200-1000 V |
| MPPT Voltage Range | 200-1000 V |
| Rated Output Power | 15000 W |
| Nominal AC Voltage | 230 V |
| Output Voltage Range | 180 V - 280 V |
| AC Voltage Range | 340 V - 480 V |
| Nominal Grid Frequency | 50 Hz / 60 Hz |
| Power Factor Adjustment Range | 0.8 leading to 0.8 lagging |
| Operating Temperature Range | -25 °C - +60 °C |
| Number of MPPT | 2 |
| Number of MPP Trackers | 2 |
| Max DC Input Current per MPPT | 20 A |
| Max. Input Current per MPPT | 20 A |
| Cooling Method | Smart Air Cooling |
Provides an overview of Growatt series hybrid inverters, detailing their design, capabilities, and key features.
Specifies the requirements for qualified and trained personnel authorized to perform electrical connections and operations.
Outlines critical safety instructions, warnings, and precautions for the installation, operation, and maintenance of the inverter.
Details the fundamental requirements for installing the inverter, including structural, environmental, and clearance needs.
Lists crucial precautions related to electrical connections, including high voltage and static electricity hazards.
Provides instructions and safety warnings for connecting the AC side of the inverter, including cable specifications.
Details the procedures and safety measures for connecting the DC side of the inverter, including PV module connections.
Describes the importance and method of grounding the inverter for safety and system protection.
Details the step-by-step procedure for safely powering on the inverter and its associated components.
Explains how error messages are displayed and the information needed for Growatt technical support.
Lists various system warnings, their descriptions, and recommended troubleshooting steps.
Details specific system error codes, their descriptions, and the corresponding troubleshooting actions.












Loading...