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SPH 3000–6000TL BL-UP / SPH 4000–10000TL3 BH-UP hybrid (Error 2xx–6xx codes)

Growatt Error 600 error code

Output short circuit detected at the inverter output.

Likely causes

  • Short circuit in the AC output or EPS wiring
  • Faulty appliance or water in an outlet
  • Damaged output cable or pinched conductor
  • Wrong wiring at the backup distribution board

Checks to run, in order

  1. 1Isolate the AC output and disconnect all backup loads
  2. 2Inspect output wiring and the backup distribution board for shorts
  3. 3Insulation-test the output circuit to earth and neutral
  4. 4Reconnect loads one at a time to find the faulty circuit

Fixes

  • Repair the shorted output wiring
  • Remove or repair the faulty appliance
  • Restart the inverter with the output clear

When to escalate

If the output circuit tests clear with no loads connected and Error 600 persists, return the inverter to Growatt service.

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.

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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 600 mean?

Output short circuit detected at the inverter output.

How do I fix Growatt Error 600?

Repair the shorted output wiring Remove or repair the faulty appliance Restart the inverter with the output clear

When should I escalate Growatt Error 600?

If the output circuit tests clear with no loads connected and Error 600 persists, return the inverter to Growatt service.

Can I reset Growatt Error 600 myself?

Only after isolating the AC and DC sides and running the checks above. If Growatt Error 600 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 600?

Growatt Error 600 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

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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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