What to do if Growatt MID 20KTL3-X displays 'DC Fuse Open'?
- KKristi BlairSep 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 20KTL3-X 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 Inverter?
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 MID 20KTL3-X 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 20KTL3-X 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 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 Inverter?
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 20KTL3-X 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 20KTL3-X |
|---|---|
| Category | Inverter |
| Max. DC Voltage | 1100 V |
| Nominal AC Power | 20000 W |
| Max. DC Power | 30000 W |
| Start Voltage | 200 V |
| Nominal DC Voltage | 600 V |
| MPPT Voltage Range | 200 - 1000 V |
| Number of MPP Trackers | 2 |
| Max. AC Power | 22000 VA |
| Nominal AC Voltage | 400 V |
| Nominal Grid Frequency | 50/60 Hz |
| Total Harmonic Distortion | <3% |
| Power Factor Adjustment Range | 0.8 leading - 0.8 lagging |
| DC Connection Type | MC4 |
| Protection Degree | IP65 |
| Topology | Transformerless |
| Operating Temperature Range | -25°C to +60°C |
| Communication Interfaces | WiFi, RS485 |
| AC Connection Type | Terminal |
| Humidity Range | 0-100% (non-condensing) |
Outlines essential safety precautions and warnings for installation, operation, and maintenance of the inverter.
Lists fundamental prerequisites, wall suitability, and environmental conditions for safe inverter installation.
Provides instructions and specifications for securely mounting the inverter unit onto a wall.
Guides users through the physical process of hanging and securing the inverter onto its wall mount.
Highlights critical safety measures to be observed during AC and DC wiring procedures to prevent electric shock.
Details the procedures and precautions for connecting AC power cables, including circuit breaker requirements.
Explains the steps and safety considerations for connecting DC power from PV modules, including voltage limits.
Explains how error messages are displayed on the OLED screen and necessary information for support.
Lists system warning codes, their fault descriptions, and suggested troubleshooting steps.












Loading...