Growatt inverter fault codes
Tap a code to see what it means, the safe checks, and when to call a pro.
Diagnose my screenshotCall a qualified installer
- Fault 01Fan locked
- Fault 03Battery voltage too high
- Fault 08Bus voltage too high
- Fault 09Internal component failure
- Fault 52Bus voltage too low
- Fault 53Internal component failure
- Fault 55DC voltage in AC output
- Fault 56Battery connection open
- Fault 57Internal component failure
- Fault 60Negative power fault
- Fault 61PV voltage too high
- Fault 62Internal communication error
- Fault 80CAN fault
- Fault 81Host loss
- Warning 01Fan locked
- Warning 03Battery over-charged
- Warning 13Solar charger stopped – high PV voltage
- Warning 19Battery disconnected
- Warning 20BMS communication error
- Warning 33BMS communication loss
- Warning 34Battery protection warning
- Warning 35Battery protection warning
- Warning 36Battery protection warning
- Warning 37Battery protection warning
- Warning 38Battery protection warning
- Warning 39Battery protection warning
- Warning 40Battery protection warning
- Warning 41Battery protection warning
- Warning 42Battery protection warning
- Warning 43Battery protection warning
- Warning 44Battery protection warning
- Warning 45System shut down
Keep an eye on it
Safe to check yourself
Solar systems carry dangerous voltages. Only do the safe checks listed. If unsure, call a pro.