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Alerts

The following list details alerts potentially returned by the device vitals API (e.g., /api/device/vitals). This data is aggregated from two primary sources:

This list is non-exhaustive and may not cover every possible alert code.

Warning

Alert descriptions labeled as Community Contributed are generated through user observation and best-effort reverse engineering. These descriptions are not official Tesla documentation. They may contain inaccuracies or incomplete information.

Alert List

AC Blade Connector Damaged

  • UI Name: AC Blade Connector Damaged
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: RMA
  • Device:

Detected AC blade connector damage. Solar Inverter/assembly damaged, impacting solar production.

Backfeed Limited (BackfeedLimited)

  • UI Name: Backfeed Limited
  • API Name: BackfeedLimited
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device: STSTSM

The system is configured for inadvertent export and therefore will not further discharge to respect this limit

Battery Breaker Open

  • UI Name: Battery Breaker Open
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

There is an open breaker between the site meter and the powerwall itself. The meter will automatically detect when the breaker is closed again.

Battery Comms

  • UI Name: Battery Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

Loss of communication to one or more inverter blocks.

Battery Fault (BatteryFault)

  • UI Name: Battery Fault
  • API Name: BatteryFault
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device: STSTSM

One or more inverter blocks is in a faulted state.

Battery Meter Comms

  • UI Name: Battery Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Battery Meter.

Battery Unexpected Power

  • UI Name: Battery Unexpected Power
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

Commanded real power does not match measured power from battery meter

Battery Unexpected Reactive Power

  • UI Name: Battery Unexpected Reactive Power
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

Commanded reactive power does not match measured power from battery meter

Black Start Failure

  • UI Name: Black Start Failure
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

The battery system was unable to black start.

Busway Meter Comms

  • UI Name: Busway Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Busway Meter.

Contactor Unresponsive Close

  • UI Name: Contactor Unresponsive Close
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

The islanding controller was unable to open the islanding contactor/circuit breaker.

DC Bus Bar Shorted

  • UI Name: DC Bus Bar Shorted
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: RMA
  • Device:

Detected DC bus bar short. Solar Inverter/assembly is damaged, impacting solar production.

External IO Comms

  • UI Name: External IO Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with External IO device.

Frequency Meter Comms

  • UI Name: Frequency Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Frequency Meter.

FWUpdateSucceeded

  • UI Name:
  • API Name: FWUpdateSucceeded
  • Source: Community Contributed
  • Severity:
  • Device: STSTSM

Firmware Upgrade Succeeded

Generator Breaker Timeout

  • UI Name: Generator Breaker Timeout
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

The generator was unable to close its breaker within the timeout window.

Generator Faulted

  • UI Name: Generator Faulted
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

The generator is in a faulted state.

Generator Meter Comms

  • UI Name: Generator Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Generator Meter.

GridCodesWrite

  • UI Name:
  • API Name: GridCodesWrite
  • Source: Community Contributed
  • Severity:
  • Device: STSTSM

Grid Resynchronization Failed

  • UI Name: Grid Resynchronization Failed
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

The islanding controller was unable to synchronize and close the islanding contactor/circuit breaker within 5 minutes.

Inverter Not Going To Vf

  • UI Name: Inverter Not Going To Vf
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

The battery system is not transitioning to grid-forming mode.

Islanding Controller MIA

  • UI Name: Islanding Controller MIA
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

Loss of communications with the islanding controller.

Load Meter Comms

  • UI Name: Load Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Load Meter.

Lost Connectivity to Tesla Site Controller

  • UI Name: Lost Connectivity to Tesla Site Controller
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

The Tesla Site Controller (or Gateway) has lost connectivity to Tesla Servers. Monitoring and management capabilities are currently limited.

No Solar Production

  • UI Name: No Solar Production
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

One or more of the solar inverters have not produced any energy in the past 24 hours. There might be an issue impacting solar production.

Opticaster Exe

  • UI Name: Opticaster Exe
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Critical
  • Device:

Opticaster failed to run on the Tesla Site Controller and the battery system is not being dispatched.

Permanent Battery Module Fault

  • UI Name: Permanent Battery Module Fault
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: RMA
  • Device:

The Powerwall battery mode has permanently faulted and product needs replacement.

PINV_a010_can_gtwMIA

  • UI Name:
  • API Name: PINV_a010_can_gtwMIA
  • Source: Community Contributed
  • Severity:
  • Device: TEPINV

Indicate that gateway/sync is MIA (seen during firmware upgrade reboot)

PINV_a039_can_thcMIA

  • UI Name:
  • API Name: PINV_a039_can_thcMIA
  • Source: Community Contributed
  • Severity:
  • Device: TEPINV

Seems to indicate that Home Controller is MIA (seen during firmware upgrade reboot)

PINV_a067_overvoltageNeutralChassis

  • UI Name:
  • API Name: PINV_a067_overvoltageNeutralChassis
  • Source: Community Contributed
  • Severity:
  • Device: TEPINV

POD_f029_HW_CMA_OV

  • UI Name:
  • API Name: POD_f029_HW_CMA_OV
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w024_HW_Fault_Asserted

  • UI Name:
  • API Name: POD_w024_HW_Fault_Asserted
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w029_HW_CMA_OV

  • UI Name:
  • API Name: POD_w029_HW_CMA_OV
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w031_SW_Brick_OV

  • UI Name:
  • API Name: POD_w031_SW_Brick_OV
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w044_SW_Brick_UV_Warning

  • UI Name:
  • API Name: POD_w044_SW_Brick_UV_Warning
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w045_SW_Brick_OV_Warning

  • UI Name:
  • API Name: POD_w045_SW_Brick_OV_Warning
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w048_SW_Cell_Voltage_Sens

  • UI Name:
  • API Name: POD_w048_SW_Cell_Voltage_Sens
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w058_SW_App_Boot

  • UI Name:
  • API Name: POD_w058_SW_App_Boot
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w063_SW_SOC_Imbalance

  • UI Name:
  • API Name: POD_w063_SW_SOC_Imbalance
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w067_SW_Not_Enough_Energy_Precharge

  • UI Name:
  • API Name: POD_w067_SW_Not_Enough_Energy_Precharge
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w090_SW_SOC_Imbalance_Limit_Charge

  • UI Name:
  • API Name: POD_w090_SW_SOC_Imbalance_Limit_Charge
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w093_SW_Charge_Request

  • UI Name:
  • API Name: POD_w093_SW_Charge_Request
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w105_SW_EOD

  • UI Name:
  • API Name: POD_w105_SW_EOD
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w109_SW_Self_Test_Request_Not_Serviced

  • UI Name:
  • API Name: POD_w109_SW_Self_Test_Request_Not_Serviced
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

POD_w110_SW_EOC

  • UI Name:
  • API Name: POD_w110_SW_EOC
  • Source: Community Contributed
  • Severity:
  • Device: TEPOD

PodCommissionTime

  • UI Name:
  • API Name: PodCommissionTime
  • Source: Community Contributed
  • Severity:
  • Device: STSTSM

Powerwall Inverter Failure

  • UI Name: Powerwall Inverter Failure
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: RMA
  • Device:

Powerwall inverter has failed permanently. Unit needs replacement.

Powerwall Performance Limited

  • UI Name: Powerwall Performance Limited
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: RMA
  • Device:

Powerwall has been locked out due to low energy. Unit needs replacement.

PV Inverter Comms

  • UI Name: PV Inverter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with PV Inverter.

PVS_a018_MciString[A-D]

  • UI Name:
  • API Name: PVS_a018_MciString[A-D]
  • Source: Community Contributed
  • Severity:
  • Device: PVS

This indicates a solar string (A, B, C or D) that is not connected.

PVS_a026_Mci1PvVoltage

  • UI Name:
  • API Name: PVS_a026_Mci1PvVoltage
  • Source: Community Contributed
  • Severity:
  • Device: PVS

PVS_a027_Mci2PvVoltage

  • UI Name:
  • API Name: PVS_a027_Mci2PvVoltage
  • Source: Community Contributed
  • Severity:
  • Device: PVS

PVS_a031_Mci3PvVoltage

  • UI Name:
  • API Name: PVS_a031_Mci3PvVoltage
  • Source: Community Contributed
  • Severity:
  • Device: PVS

PVS_a032_Mci4PvVoltage

  • UI Name:
  • API Name: PVS_a032_Mci4PvVoltage
  • Source: Community Contributed
  • Severity:
  • Device: PVS

PV String Out

  • UI Name: PV String Out
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

One or more solar inverter strings are not producing power, expect lower than usual solar performance.

Pyranometer Comms

  • UI Name: Pyranometer Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Pyranometer.

Ramp Rate Limited

  • UI Name: Ramp Rate Limited
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

The output does not currently match the commanded power because the system is ramping to its setpoint

Reactive Power Limited

  • UI Name: Reactive Power Limited
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

The command is greater than the Available Reactive Power

Real Power Available Limited (RealPowerAvailableLimited)

  • UI Name: Real Power Available Limited
  • API Name: RealPowerAvailableLimited
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device: STSTSM

The command is greater than the Available Battery Real Charge or Discharge Power

Real Power Config Limited

  • UI Name: Real Power Config Limited
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

The system is unable to meet the commanded power because of a limit that was configured during commissioning

ScheduledIslandContactorOpen

  • UI Name:
  • API Name: ScheduledIslandContactorOpen
  • Source: Community Contributed
  • Severity:
  • Device: STSTSM

Manually Disconnected from Grid

SelfConsumptionReservedLimit

  • UI Name:
  • API Name: SelfConsumptionReservedLimit
  • Source: Community Contributed
  • Severity:
  • Device: STSTSM

Battery reached reserve limit during self-consumption mode and switches to grid

Site Max Power Limited

  • UI Name: Site Max Power Limited
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

Cannot meet command because the Site Maximum Power Limit has been set

Site Meter Comms

  • UI Name: Site Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Site Meter.

Site Min Power Limited (SiteMinPowerLimited)

  • UI Name: Site Min Power Limited
  • API Name: SiteMinPowerLimited
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device: STSTSM

Cannot meet command because the Site Minimum Power Limit has been set

Smart Inverter Active

  • UI Name: Smart Inverter Active
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device:

Due to grid conditions, a Smart Inverter Feature is now in operation on Battery Block X

Solar Charge Only Limited (SolarChargeOnlyLimited)

  • UI Name: Solar Charge Only Limited
  • API Name: SolarChargeOnlyLimited
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.6
  • Severity:
  • Device: STSTSM

The system has been configured to only charge from solar. Solar is not available; the charge request cannot be met

Solar Meter Comms

  • UI Name: Solar Meter Comms
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

Loss of communications with Solar Meter.

SYNC_a001_SW_App_Boot

  • UI Name:
  • API Name: SYNC_a001_SW_App_Boot
  • Source: Community Contributed
  • Severity:
  • Device: TESYNC

SYNC_a038_DoOpenArguments

  • UI Name:
  • API Name: SYNC_a038_DoOpenArguments
  • Source: Community Contributed
  • Severity:
  • Device: TESYNC

System shutdown

  • UI Name: System shutdown
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

The system has been shutdown by an external kill switch, or a system shutdown has been triggered by a low GPIO pin.

THC_w061_CAN_TX_FIFO_Overflow

  • UI Name:
  • API Name: THC_w061_CAN_TX_FIFO_Overflow
  • Source: Community Contributed
  • Severity:
  • Device: TETHC

THC_w155_Backup_Genealogy_Updated

  • UI Name:
  • API Name: THC_w155_Backup_Genealogy_Updated
  • Source: Community Contributed
  • Severity:
  • Device: TETHC

Unknown but seen during firmware upgrade.

Wait for Solar

  • UI Name: Wait for Solar
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Performance
  • Device:

The site currently doesn't have enough SOE to form a grid. Waiting for more solar energy. Fix: User command or wait for daytime.

Waiting for Jumpstart - Low SOE

  • UI Name: Waiting for Jumpstart - Low SOE
  • API Name:
  • Source: Tesla - Residential Powerhub User Manual - Rev. 1.16
  • Severity: Informational
  • Device:

The system has been put to sleep due to a low SOE and being off-grid.