SPF 3000TL LVM-ES / SPF 3500–5000 ES Lite off-grid (fault codes 01–81)
Growatt 02 error code
Internal component temperature is over 100 °C (F02 on the ES Lite).
Likely causes
- Airflow blocked or vents covered in dust
- Ambient temperature too high
- Fan not running
- Thermistor plug loose
Checks to run, in order
- 1Check whether the airflow of the unit is blocked or the ambient temperature is too high
- 2Check that the fans are running
- 3Check whether the thermistor plug is loose
- 4Clean the vents and heatsink
Fixes
- Clear the airflow path and clean the unit
- Lower the ambient temperature or improve ventilation
- Reseat the thermistor plug and restart
When to escalate
If temperature stays over the limit with clear airflow and a cool ambient, return the unit to a Growatt repair centre.
Fix it with the right tools
Check the system around the fault before replacing parts: load, battery bank, PV string and commissioning settings. If you need a second opinion, send the code and your inverter model to our team.
Before you open the inverter
- Isolate both the AC and DC sides, then confirm the display is dead before touching terminals.
- Use insulated tools and one hand where possible. DC arcs do not self-extinguish like AC.
- If you see burnt terminals, swollen cells, leaking electrolyte or a burning smell, stop and escalate instead of resetting the fault.
Questions installers ask
What does Growatt 02 mean?
Internal component temperature is over 100 °C (F02 on the ES Lite).
How do I fix Growatt 02?
Clear the airflow path and clean the unit Lower the ambient temperature or improve ventilation Reseat the thermistor plug and restart
When should I escalate Growatt 02?
If temperature stays over the limit with clear airflow and a cool ambient, return the unit to a Growatt repair centre.
Can I reset Growatt 02 myself?
Only after isolating the AC and DC sides and running the checks above. If Growatt 02 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show Growatt 02?
Growatt 02 is documented for SPF 3000TL LVM-ES / SPF 3500–5000 ES Lite off-grid (fault codes 01–81). Confirm the code on your own unit's display or manual before ordering parts.
More Growatt error codes
- Growatt 01Fan is locked (displayed as F01 on the SPF ES Lite).
- Growatt 03Battery is over-charged / battery voltage is too high (F03 on the ES Lite).
- Growatt 04Battery voltage low.
- Growatt 05Output is short-circuited (F05 on the ES Lite).
- Growatt 06Output voltage is too high. The manual groups 06/58 as 'output abnormal' — inverter voltage above 150 Vac or below 40 Vac.
- Growatt 07Overload time out — the inverter carried over 110% load until its overload timer expired (F07 on the ES Lite).
Guidance reviewed 17 October 2026 by the Mishka Energy installer team. Error codes vary by brand, model family and firmware; confirm against the manufacturer manual.
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