Growatt MIN 5000TL-XH Diagnostics
Classification: Solar Inverters Equipment
Hardware operational fault codes, protection alarms, LED blink sequences, and step-by-step diagnostic fixes for the Growatt MIN 5000TL-XH.
Indexed Fault Codes for MIN 5000TL-XH
Step-by-step resolution manuals and root cause matrices
Transient Leakage Current Fault
Error 201 indicates the internal Residual Current Monitoring Unit (RCMU) detected an excessive transient leakage current (residual current spike typically >30mA or sudden jump >30mA to ground) exceeding safety limits defined in DIN VDE 0126-1-1 / IEC 62109-2, causing the inverter to immediately disconnect from the grid.
Auto Test PV Isolation Low
Error 407 triggers when the inverter's internal diagnostic test detects that the insulation resistance between the DC PV array conductors and earth is below the safety threshold (typically <50 kΩ or standard local limit), preventing grid synchronization to avoid electrical shock or ground-fault fires.