Error 200 on a Growatt MIN 2500-6000TL-X: AFCI fault - an electric arc occurred in the PV system; AFCI tripped and the inverter is in permanent shutdown
Short answer
On a Growatt inverter, Error 200 means: AFCI fault - an electric arc occurred in the PV system; AFCI tripped and the inverter is in permanent shutdown. The inverter stops until the fault clears or is reset. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: AFCI fault - an electric arc occurred in the PV system; AFCI tripped and the inverter is in permanent shutdown.
Part involved: Arc fault detection (AFCI).
Likely causes:
- Series DC arc; poor PV terminal connection.
Is it safe?
Switch the inverter off at its isolator and call an engineer.
| Does the inverter stop? | Yes |
|---|---|
| Severity | Safety lockout |
| Engineer needed? | Yes |
The inverter stops until the fault clears or is reset.
Resetting itself: no - permanent shutdown until inspected and restarted.
Manual reset: yes - after an installer has inspected the DC side.
What you can check
- Read and note the exact code and time from the inverter display or app (screenshot).
- Leave the system off at the AC isolator if you smell burning or see scorching and call the installer.
- Do not reset repeatedly.
- Growatt's manual says 'restart inverter'. A homeowner can switch the inverter off and on at its AC isolator/breaker; leave DC switching to the installer unless the manual step says to switch DC off immediately (Error 202).
What the engineer will check
- Inspect every DC connection/MC4 pair, optimiser/connector mismatches, damaged cable.
- Thermal-image the array and DC isolators.
- Follow manufacturer arc-fault application note before clearing.
Who to ask for: PV installer.
Certification: Electrician competent in grid-connected PV (BS 7671 Section 712; IET Code of Practice for Grid-connected Solar PV), ideally the original MCS-certified PV installer; brand-approved/trained installer to keep manufacturer warranty.
What you might notice
Sources
- Growatt MIN 2500-6000TL-X Installation & Operation (User) Manual, general EN 2022-06 ↗ · EN 202206 · page PDF p.23 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026