Electrical (12V / 120V / Converter / Inverter) error codes

107 codes from 7 manufacturers, each with its meaning and the document it comes from. Open a code for the details, or search every system.

Iota (1)

• IOTA-LOW-13.4VCustomer reports battery only charges to 13.4 V — standard DLS without IQ4 is a fixed-voltage power supply…

Progressive Dynamics Charge Wizard (3)

• Charge Wizard LED solid/steady ONBOOST mode - the Charge Wizard is in rapid (bulk) charge at 14.4 VDC, used to bring a low battery up to about…
• Charge Wizard LED flashing ~1-5 times/sec (Wizard 1) or at a 2-second rate (Wizard 2)NORMAL / REGULAR mode - 13.6 VDC, the standard output that safely completes the charge after Boost. A…
• Charge Wizard LED brief flash every 8 s (Wizard 1) or every 6 s (Wizard 2)STORAGE mode - 13.2 VDC, a reduced 'float' voltage that maintains a full battery with minimal gassing/water…

Schneider Conext (47)

• W44Battery over-temperature: battery temperature is over 50 degC (122 degF). Stop charging if necessary.
• W45DC bulk capacitor over-temperature (100 degC / 212 degF).
• W48DC under-voltage: battery voltage is below 47 V (48 V systems) or 23.5 V (24 V systems).
• W49DC over-voltage: battery voltage is above 68 V (48 V systems).
• W57FET1 over-temperature: internal temperature is over 85 degC (185 degF). Causes incl. high AC input voltage…
• W58FET2 over-temperature (same condition as W57).
• W63AC overload: excessive load on the AC output.
• W64AC overload (same condition as W63).
• W68Transformer over-temperature (same condition/response as W57).
• W94Remote Power Off: the unit was turned off with a Remote Power Off switch. It stops inverting/charging and…
• W95Equalize aborted: equalization terminated abnormally because of interrupted AC input.
• W96Cannot equalize: the selected battery type should not be equalized (Gel/AGM), or AC input is not qualified /…
• W97Battery temperature sensor failure: the battery temperature sensor is shorted.
• W500Lost network connection (Xanbus).
• W501Non-volatile memory warning: the inverter/charger is trying to fix a memory problem. Normal operation may…
• F1AC output under-voltage shutdown at 108 V -- the inverter shut down to protect the loads (escalating…
• F2AC output over-voltage shutdown at 135 V (escalating auto-fault: 3 times in 30 seconds to become a manual…
• F17Transfer relay welded: the AC1 L1 transfer relay is bad, or an AC source was wired directly to the AC output.
• F18Transfer relay welded (AC1 L2 transfer relay bad, or an AC source wired directly to the AC output).
• F19Transfer relay welded (AC2 L1 transfer relay bad, or an AC source wired directly to the AC output).
• F20Transfer relay welded (AC2 L2 transfer relay bad, or an AC source wired directly to the AC output).
• F21Transfer relay welded (an unidentified transfer relay is bad, or an AC source wired directly to the AC…
• F22Transfer relay welded (an unidentified L1 transfer relay is bad, or an AC source wired directly to the AC…
• F41Auxiliary power supply (APS) under-voltage shutdown (escalating auto-fault: 3 times in 30 seconds to become a…
• F42Auxiliary power supply (APS) over-voltage shutdown (escalating auto-fault: 3 times in 30 seconds to become a…
• F44Battery over-temperature shutdown at 60 degC.
• F45Capacitor over-temperature shutdown at 105 degC.
• F46Controller fault.
• F47DC under-voltage shutdown (immediate) -- DC voltage is below 16 VDC (24 V system) or 32 VDC (48 V system).…
• F48DC under-voltage shutdown -- DC voltage is below the LBCO (Low Battery Cut Out) voltage level.
• F49DC over-voltage shutdown -- DC voltage is above 35 VDC (24 V) or 70 VDC (48 V). Can occur when batteries are…
• F52EEPROM error.
• F53EEPROM error (same as F52).
• F54EEPROM error (same as F52).
• F55EEPROM error (same as F52).
• F56EEPROM error (same as F52).
• F57FET1 over-temperature shutdown: internal temperature is over 105 degC; the fault clears when temperature…
• F58FET2 over-temperature shutdown (same condition as F57).
• F59GOCFG (Copy From?) auto-configuration process failed.
• F63AC overload: excessive load on the AC output (escalating auto-fault: 3 times in 5 minutes to become a manual…
• F64AC overload on L1 (excessive load on the AC output; escalating auto-fault).
• F65AC overload on L2 (excessive load on the AC output; escalating auto-fault).
• F66Multi-unit configuration fault: multi-unit configuration settings are incorrect.
• F67Watchdog error.
• F68Transformer over-temperature: the transformer temperature is over 140 degC; the fault clears when it falls to…
• F69External sync failed.
• F500Silicon Serial ID failure.

Victron (45)

• BMS connection lostThe charger has lost the connection to the battery management system that controls it (Smart IP43: via the…
• W-B01Low cell voltage
• W-B02High current
• W-B03High BMS temperature
• W-B04Warning bad contactor
• W-B05BMS cable fault
• W-B06Load will disconnect
• W-B07Low SoC
• W-B09High temperature
• W-B10VE.Can disconnected
• W-B11Firmware update failure
• W-D01Communication with Distributor A lost
• W-D02Communication with Distributor B lost
• W-D03Communication with Distributor C lost
• W-D04Communication with Distributor D lost
• W-D05Communication with Distributor E lost
• W-D06Communication with Distributor F lost
• W-D07Communication with Distributor G lost
• W-D08Communication with Distributor H lost
• A-B01Low cell voltage
• A-B02High current
• A-B05BMS cable fault
• A-B06Load disconnected
• A-B07Low SoC
• E-B01Battery init failure
• E-B02No battery found
• E-B05Invalid number of batteries
• E-B09Battery voltage not allowed
• E-B11Hardware error
• E-B25Pre-charge error
• E-B26Contactor error
• E-B32BMS cable error
• E-B34Wrong system voltage
• E-B35Pre-charge timeout
• E-B36ATC/ATD failure
• E-B116Calibration data lost
• E-B119Settings data lost
• 10System time synchronisation problem occurred
• 12Config mismatch with 2nd microcontroller (VEConfigure settings not stored identically in both MCUs)
• A-B08Low bank voltage alarm
• A-B09High battery temperature alarm
• LED BLUE OFFNo system power or Bluetooth disabled
• LED RED FLASH 1x4sWarning condition detected
• LED RED FLASH 2x4sBattery communication error
• LED RED FLASH 3x4sHigh/low cell voltage condition

Victron Energy (2)

• Low SoC AlarmBattery State of Charge has fallen to the configured Low SoC alarm threshold (tied to the discharge-floor…
• Bluetooth disabledBluetooth has been disabled on the Victron product and must be re-enabled before pairing

Victron Lithium Smart Battery (7)

• E-SL1Balancer failure
• E-SL2Internal communication failure
• E-SL9Overlapped voltage error
• E-SL10Balancer update error
• A-SL11Under voltage alarm: the voltage of one or more cells is below the configured Allow-To-Discharge cell voltage…
• A-SL9Over voltage alarm: the voltage of one or more cells has become too high; immediately disable all chargers…
• A-SL15Over temperature alarm: the battery has reached its high-temperature threshold and charging is disabled…

Victron VRM (2)

• Installation could not be foundVRM Portal ID not recognized or system has not yet established first internet connection
• High CPU load warningGX device CPU load exceeded safe threshold; real-time data disabled automatically