SPH 3000–6000TL BL-UP / SPH 4000–10000TL3 BH-UP hybrid (Error 2xx–6xx codes)
Growatt Error 500 error code
The inverter has lost communication with the lithium battery BMS over the battery communication port.
Likely causes
- Lithium battery switched off or not started
- Battery communication cable loose, wrong port or wrong pinout
- Battery protocol/type not selected in the inverter
- BMS in protection or fault state
Checks to run, in order
- 1Confirm the lithium battery is switched on and its BMS is awake
- 2Check the communication cable between battery and inverter at both ends
- 3Verify the lithium protocol/battery type selected in the inverter matches the battery
- 4Review the battery BMS status and any BMS warning it reports
Fixes
- Power-cycle the battery, then the inverter, in the manufacturer's order
- Reseat or replace the communication cable and select the correct protocol
- Restart and confirm the battery shows as online in the monitoring portal
When to escalate
If the battery is on, the cable and protocol are correct and Error 500 persists, involve the battery manufacturer and Growatt support together.
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 Error 500 mean?
The inverter has lost communication with the lithium battery BMS over the battery communication port.
How do I fix Growatt Error 500?
Power-cycle the battery, then the inverter, in the manufacturer's order Reseat or replace the communication cable and select the correct protocol Restart and confirm the battery shows as online in the monitoring portal
When should I escalate Growatt Error 500?
If the battery is on, the cable and protocol are correct and Error 500 persists, involve the battery manufacturer and Growatt support together.
Can I reset Growatt Error 500 myself?
Only after isolating the AC and DC sides and running the checks above. If Growatt Error 500 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show Growatt Error 500?
Growatt Error 500 is documented for SPH 3000–6000TL BL-UP / SPH 4000–10000TL3 BH-UP hybrid (Error 2xx–6xx codes). 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 02Internal component temperature is over 100 °C (F02 on the 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.
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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