Growatt Diagnostics & Fault Manuals
Global residential and commercial inverter manufacturer with off-grid and hybrid energy storage units.
Equipment Models
Hardware families produced by Growatt
Growatt SPF 5000 ES
3 guidesClass: Off-Grid 5kW 48V Pure Sine Wave Inverter
Growatt SPF 5000 ES
3 guidesClass: Off-Grid 5kW 48V Pure Sine Wave Inverter
Growatt SPF 5000 ES
3 guidesClass: Off-Grid 5kW 48V Pure Sine Wave Inverter
Growatt SPF 5000 ES
3 guidesClass: Off-Grid 5kW 48V Pure Sine Wave Inverter
Growatt SPF 5000 ES
3 guidesClass: Off-Grid 5kW 48V Pure Sine Wave Inverter
Growatt SPF 5000 ES
3 guidesClass: Off-Grid 5kW 48V Pure Sine Wave Inverter
MIN 5000TL-X
1 guidesClass: Single-Phase Grid-Tied Inverter
MIN 5000TL-XH
2 guidesClass: Solar Inverters Equipment
SPF Series (SPF 3000TL / SPF 5000ES)
1 guidesClass: Solar Inverters Equipment
Indexed Error Codes for Growatt
Machine-verified error code diagnostic walkthroughs
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.
Internal DSP Sampling Inconsistency Fault
Error 102 indicates a hardware sampling inconsistency between the master and slave Digital Signal Processors (DSP) or redundant analog-to-digital converter (ADC) channels. The safety supervisor detected a divergence in internal voltage/current telemetry across the internal bus, tripping redundant safety shutdown relays.
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.
Inverter Soft Start Failure
Fault 04 trips when the inverter's DC-to-AC conversion stage fails to ramp up the AC output voltage to target operating parameters (230VAC) within the designated soft-start window. This safety mechanism protects the power conversion board from destructive overcurrent events typically caused by high inrush loads connected during startup, an external AC short circuit, or failed internal H-bridge power switches.
Bus Voltage Too High
Error Code 08 represents an internal DC bus over-voltage condition (exceeding 500VDC internally). This is a critical protective shutdown to protect the main capacitor bank and IGBT bridge from catastrophic rupture.
Heatsink Over Temperature
Error Code 02 triggers when internal thermal sensors register temperatures exceeding 90°C (194°F) on the main power MOSFET heatsink or transformer core.
Low Battery Voltage
Error Code 04 indicates that the battery bank voltage has plummeted below the low-voltage cutoff threshold configured in the inverter settings, prompting an emergency shutdown to prevent irreversible battery cell degradation.