Tesla
Powerwall Inverter Failure
Inverter Permanently Failed (RMA)
Powerwall inverter failed permanently (example coded alert PINV_a067_overvoltageNeutralChassis).
Common causes
Internal failureNeutral to chassis overvoltage from external wiring
What to check
STEP 1
One controlled power cycle to confirm the fault re-asserts.
STEP 2
Check AC wiring and neutral-earth arrangement (UK PME/TT) to rule out an external cause.
Escalate if
Fault re-asserts with wiring verified, RMA
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