MIN 7000TL-X2 (AS4777-2 2020)

This warranty covers manufacturing defects for a period of 10 years. To make a claim, please contact Growatt customer service with the relevant details.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape

Pro-rata — value reduces with age

If you sell the home

Transfers to the next homeowner

What voids it

Non-accredited installation, modifications, and damage due to moisture or dust penetration

Environment limits

None specified

Showing 9 of 9. The official install manual is the authoritative source — always confirm before acting.

• 203criticalCall your installer

  Manual (PDF)

  PV Isolation Low

  Likely cause

  Insulation problem

  What to do

  1. Check if the panel enclosure is grounded properly. 2. Check if the inverter is grounded properly. 3. Check if the DC breaker gets wet. 4. Check the impedance of PV(+) & PV(-) between ground (must be more than 30KΩ), if the error message displays despite passing checks, contact Growatt.

• 407critical

  Manual (PDF)

  Auto Test Failed

  Likely cause

  Auto test didn't pass

  What to do

  Restart inverter, repeat auto test; if the problem continues, contact Growatt.

• 200warningCall your installer

  Manual (PDF)

  AFCI fault

  Likely cause

  High power discharge of electricity between two or more conductors

  What to do

  1. After shutdown, check the connection of PV terminals. 2. Restart the inverter. 3. If the error message still exists, contact Growatt.

• 201warningCall your installer

  Manual (PDF)

  Residual I High

  Likely cause

  Leakage current too high

  What to do

  1. Restart the inverter. 2. If the error message still exists, contact Growatt.

• 202warningCall your installer

  Manual (PDF)

  PV Voltage High

  Likely cause

  The DC input voltage is exceeding the maximum tolerable value

  What to do

  1. Disconnect the DC switch immediately. 2. Check the voltage of each PV string with a multimeter. 3. If the voltage of the PV string is lower than expected, contact Growatt.

• 300warningCall your installer

  Manual (PDF)

  AC V Outrange

  Likely cause

  Utility grid voltage is out of permissible range

  What to do

  1. Please switch off the DC switch. 2. Check AC wiring, especially neutral and ground wire. 3. Check grid voltage to ensure it complies with local grid standard. Restart the inverter; if the problem persists, contact Growatt.

• 303warningCall your installer

  Manual (PDF)

  PE abnormal

  Likely cause

  Voltage of Neutral and PE above 30V

  What to do

  1. Check the voltage of Neutral and PE. 2. Check AC wiring. 3. Restart inverter; if the error message still exists, contact the manufacturer.

• 304warningCall your installer

  Manual (PDF)

  AC F Outrange

  Likely cause

  Utility grid frequency out of permissible range

  What to do

  1. Please switch off the DC switch. 2. Check AC wiring, especially neutral and ground wire. 3. Check grid frequency; if the issue persists, contact Growatt.

• 302info

  Manual (PDF)

  No AC connection

  Likely cause

  No AC connection

  What to do

  1. Check AC wiring. 2. Check the status of the AC breaker.