How do I fix Inverter Cannot See Gateway (CAN) on a Tesla?

Wait 15 to 30 minutes if a firmware update is running, this alert is expected during reboot. Then: If persistent, inspect comms runs and connectors, then power cycle Gateway then Powerwall.

Tesla

PINV_a010_can_gtwMIA

Inverter Cannot See Gateway (CAN)

Powerwall inverter reports the Gateway missing on the CAN bus. Normal briefly during firmware reboots.

Common causes

Firmware update in progressComms cable fault

What to check

STEP 1

Wait 15 to 30 minutes if a firmware update is running, this alert is expected during reboot.

STEP 2

If persistent, inspect comms runs and connectors, then power cycle Gateway then Powerwall.

Escalate if

Active for hours outside an update with wiring verified

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More Tesla fault codes

ALT-01

Breaker Open

ALT-02

Device Offline / Gateway Offline

ALT-03

Backup Failed / No Power During Outage

ALT-04

Calibration Discharge to 0%

ALT-05

CT Reading Error — Negative Solar or Grid