What to do if Growatt MID 12KTL3-XL displays 'DC Fuse Open'?
- NndavisSep 3, 2025
If your Growatt Inverter displays 'DC Fuse Open', after shutdown, check the fuse. If the error message persists, it is recommended to contact the manufacturer.

What to do if Growatt MID 12KTL3-XL displays 'DC Fuse Open'?
If your Growatt Inverter displays 'DC Fuse Open', after shutdown, check the fuse. If the error message persists, it is recommended to contact the manufacturer.
How do I troubleshoot a 'PV Circuit short' error on my Growatt MID 12KTL3-XL?
If your Growatt Inverter displays 'PV Circuit short', check if the PV1 or PV2 wiring is short-circuited. If the error message persists, it is recommended to contact the manufacturer.
What should I do if my Growatt Inverter shows 'EPS mode, over load'?
If your Growatt Inverter displays 'EPS mode, over load', reduce the load of EPS output. If the error message persists, it is recommended to contact the manufacturer.
How to fix a 'PE abnormal' error on a Growatt Inverter?
If your Growatt Inverter displays 'PE abnormal', check the PE line to ensure it is making good contact. If the error message persists, contact the manufacturer.
What should I do if my Growatt MID 12KTL3-XL shows a 'Grid frequency outrange' error?
If your Growatt Inverter displays 'Grid frequency outrange', check if the frequency is within the specified range. If the error message persists, it is recommended to contact the manufacturer.
What causes 'AC V Outrange' on a Growatt MID 12KTL3-XL Inverter and how do I fix it?
If your Growatt Inverter indicates 'AC V Outrange', begin by checking the grid voltage. If the error message continues to appear even when the grid voltage is within the tolerable range, contact the manufacturer.
How to troubleshoot a 'No AC Connection' error on a Growatt MID 12KTL3-XL?
If your Growatt Inverter shows 'No AC Connection', first shutdown the system and check the AC wiring. If the error message persists, it is recommended to contact the manufacturer.
What to do if my Growatt MID 12KTL3-XL Inverter displays 'No Utility'?
If your Growatt Inverter shows 'No Utility', first confirm if the grid is lost or not. If the error message persists, it is recommended to contact the manufacturer.
| Model | MID 12KTL3-XL |
|---|---|
| Rated Power | 12000W |
| Max. DC Voltage | 1100 V |
| Max. DC Input Voltage | 1100 V |
| Start Voltage | 200 V |
| Nominal DC Voltage | 600 V |
| Input Voltage Range | 200 - 1000 V |
| Number of MPPT | 2 |
| Number of MPP Trackers | 2 |
| Nominal AC Power | 12000W |
| Nominal Grid Frequency | 50/60 Hz |
| THDi | <3% |
| DC Switch | Yes |
| Protection Class | IP65 |
| Ingress Protection | IP65 |
| Topology | Transformerless |
| Noise Level | <25 dB |
| Max. DC Power | 15 kW |
| Max. DC Input Power | 15 kW |
| Max. AC Power | 12.6 kW |
| Nominal AC Voltage | 230 V |
| Power Factor | 0.8 leading ... 0.8 lagging |
| Operating Temperature Range | -25°C to 60°C |
| Cooling Method | Natural cooling |
| Cooling | Natural cooling |
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