Huawei SUN2000-KTL-M1 (three-phase inverter, 3–10 kW, battery-ready)
Huawei · PV inverters · 82 codes · 65 with plain-language explanation
Guides
- How to switch a Huawei SUN2000-M1 inverter off and on safely
The manual gives the order: AC switch off, then the DC switch at the bottom of the inverter, wait 5 minutes (it stays energised and hot), then AC and DC on again.
- What the LEDs on a Huawei SUN2000-M1 inverter mean
The LED colours and blinking patterns show PV, grid connection, communication and alarm states, as described in the manual.
Error codes
- Alarm 2001 String Voltage High with plain-language explanation
- Alarm 2002 DC Arc Fault with plain-language explanation
- Alarm 2003 DC Arc Fault with plain-language explanation
- Alarm 2004 DC Overvoltage with plain-language explanation
- Alarm 2005 DC in Reverse Polarity with plain-language explanation
- Alarm 2006 DC Short-Circuited or in Reverse Polarity source text only
- Alarm 2007 DC Connected in Series source text only
- Alarm 2008 DC Bus Not Securely Connected source text only
- Alarm 2009 String Short-Circuited to Ground with plain-language explanation
- Alarm 2010 Abnormal DC Input with plain-language explanation
- Alarm 2011 String Reverse Connection with plain-language explanation
- Alarm 2012 String Current Backfeed with plain-language explanation
- Alarm 2013 String Power Abnormal with plain-language explanation
- Alarm 2014 High String Voltage to Ground with plain-language explanation
- Alarm 2015 PV String Loss with plain-language explanation
- Alarm 2016 String Short-Circuited with plain-language explanation
- Alarm 2021 AFCI Self-Check Failure with plain-language explanation
- Alarm 2031 Phase wire short-circuited to PE with plain-language explanation
- Alarm 2032 Grid Failed with plain-language explanation
- Alarm 2033 Grid Undervoltage with plain-language explanation
- Alarm 2034 Grid Overvoltage with plain-language explanation
- Alarm 2035 Grid Voltage Imbalance with plain-language explanation
- Alarm 2036 Grid overfrequency with plain-language explanation
- Alarm 2037 Grid underfrequency with plain-language explanation
- Alarm 2038 Grid Frequency Unstable with plain-language explanation
- Alarm 2039 AC Overcurrent with plain-language explanation
- Alarm 2040 DC Component Overhigh with plain-language explanation
- Alarm 2041 Reverse Phase Sequence on AC Side with plain-language explanation
- Alarm 2042 L/N Reverse Phase Sequence with plain-language explanation
- Alarm 2051 Abnormal Residual Current with plain-language explanation
- Alarm 2061 Abnormal Grounding with plain-language explanation
- Alarm 2062 Low Insulation Resistance with plain-language explanation
- Alarm 2063 Temperature High with plain-language explanation
- Alarm 2064 Device Abnormal with plain-language explanation
- Alarm 2065 Update Failure or Version Mismatch with plain-language explanation
- Alarm 2066 License Expired with plain-language explanation
- Alarm 2067 Faulty power collector with plain-language explanation
- Alarm 2068 Battery abnormal with plain-language explanation
- Alarm 2070 Active islanding with plain-language explanation
- Alarm 2071 Passive islanding with plain-language explanation
- Alarm 2072 Transient AC overvoltage with plain-language explanation
- Alarm 2075 Peripheral Port Short Circuit source text only
- Alarm 2077 Off-Grid Output Overload with plain-language explanation
- Alarm 2080 Abnormal PV Module Configuration with plain-language explanation
- Alarm 2081 Optimizer Fault source text only
- Alarm 2082 Backup Box abnormal with plain-language explanation
- Alarm 2085 Built-in PID operation abnormal with plain-language explanation
- Alarm 2086 External Fan Abnormality with plain-language explanation
- Alarm 2087 Internal fan abnormal with plain-language explanation
- Alarm 2088 Abnormal DC protection unit with plain-language explanation
- Alarm 2089 EL unit abnormal source text only
- Alarm 2090 Abnormal active power scheduling instruction source text only
- Alarm 2091 Abnormal reactive power scheduling instruction source text only
- Alarm 2092 CT connection abnormal with plain-language explanation
- Alarm 2093 DC Switch Status Abnormal with plain-language explanation
- Alarm 2094 The remaining dischargeable capacity of the battery is low with plain-language explanation
- Alarm 2095 Management System Certificate Invalid with plain-language explanation
- Alarm 2096 Management System Certificate About to Expire source text only
- Alarm 2097 Management System Certificate Expired with plain-language explanation
- Alarm 2098 Parallel System Communication Failure source text only
- Alarm 2099 App Communication Certificate Invalid source text only
- Alarm 2100 App Communication Certificate Will Expire source text only
- Alarm 2101 App Communication Certificate Expired source text only
- Alarm 2102 Protection upon Communication Failure with plain-language explanation
- Alarm 2103 AC Terminal Temperature Abnormal with plain-language explanation
- Alarm 2104 DC Terminal Temperature Abnormal with plain-language explanation
- Alarm 2110 Power Control Abnormal at Grid Connection Point with plain-language explanation
- Alarm 2113 Invalid Region with plain-language explanation
- Alarm 2129 No Power Output for an Extended Period with plain-language explanation
- Alarm 2135 Hardware Mismatch source text only
- Alarm 4000 Inverter Communication Error with plain-language explanation
- Alarm 4001 App Communication Certificate Expired with plain-language explanation
- Alarm 4002 Management System Certificate Expired with plain-language explanation
- Alarm 4003 The auxiliary power supply is faulty with plain-language explanation
- Alarm 4009 Management System Certificate Invalid with plain-language explanation
- Alarm 4010 Management System Certificate About to Expire with plain-language explanation
- Alarm 4011 App Communication Certificate Invalid source text only
- Alarm 4012 App Communication Certificate Will Expire source text only
- Alarm 4021 CT connection abnormal with plain-language explanation
- Alarm 4023 AC Cable Connection Abnormal source text only
- Alarm 4024 Software version mismatch with plain-language explanation
- Alarm 61440 Faulty monitoring unit with plain-language explanation