Tesla Powerwall
Powerwall 2, Powerwall+ and Powerwall 3 home batteries with their gateways and meters
Covered equipment
Failures by component
gateway control board and firmware
- Time-Based Control charges or discharges unpredictably
- Gateway never finishes commissioning, solar output stays zero
- Phone Bluetooth pairing fails on new installs
- Gateway shows max panel current error, output capped
- Off-grid frequency climbs to 65-66 Hz, trips devices
- Gateway shows Powerwall Inactive during a real outage
- Off-grid solar curtails until 85% instead of 97%
- App live power flow goes blank after update
- Gateway stays dead off-grid even in full sun
- Gateway local login fails, unexpected request origin error
- Powerwall 3 stuck at 0% for days
- Gateway shows constant small grid import, never zero
- Gateway 3 shows large import and export swings
- Gateway stuck at Grid Qualifying, battery never discharges
- Backup Gateway dead while solar keeps running
- Powerwalls charge from grid with grid charging off
- Powerwall 2 at 8% despite scheduled overnight charge
- Backup reserve set above 80% reverts to 80%
- Time-Based Control stops discharging after about 50 minutes
- Storm Watch opt-out ignored, system still imports
- Charge on Solar mode causes wild flow swings
- House lights flicker after a firmware update
- Gateway can't detect grid phase, Powerwall at 0%
- Gateway briefly cuts house power for no outage
- Storm Watch fails to activate before a storm
- Gateway throttles solar after PTO, exports nothing
- Generator runs but Powerwalls never recharge
current transformers and metering
- Gateway CT readings wrong, doubled, halved, or swapped
- Gateway stops following schedule, charges erratically
- Neurio meter unreachable, Powerwalls stuck in standby
- Neurio meter won't pair, worse in cold weather
- Remote Energy Meter cycles, drops Gateway 3 offline
- Powerwall 3 solar zeroes out after SPAN install
- Extra duplicate Neurio device found during setup
battery pack
- Powerwall 2 shows Low Energy Lockout, disabled remotely
- Powerwall 2 capacity falls below 70% warranty floor
- Powerwall 2 won't charge overnight in cold weather
- Powerwall 3 drains below reserve overnight, reads 0%
- Powerwall calibration banner, discharges to 0% after update
- Powerwall 3 enters standby briefly, same time daily
- Powerwall 2 stored unpowered reads zero volts
gateway network module
- Gateway shows Server not connected, strong signal nearby
- Powerwall 3 WiFi disables itself, falls back cellular
- Gateway settings won't sync on WiFi plus Ethernet
- Gateway 1 shows Error scanning networks repeatedly
PV strings and MCIs
- PV string production far below expected estimate
- PV string drops to 0V, logs MCI error
- Site shutdown circuit triggered, all Powerwalls disabled
- Rapid shutdown signal shocks gutters and roof metal
Tesla cloud and app
- App shows doubled or missing daily history
- Permission to Operate reverts to No daily
- App daily totals wrong while graphs look right
- App export limit silently dropped to 4 kW
- App shows Check Network Connectivity during outage
- Tesla service ticket stalls for weeks
internal inverter and control board
- Powerwall 2 shows Fault Detected, breaker won't reset
- Replacement Powerwall buzzes loudly under load
- Powerwall idle standby loss roughly doubles after update
- Powerwall whines audibly through a shared wall
solar inverter (1538000)
- Powerwall+ inverter output falls gradually over years
- Powerwall+ solar stuck at zero after a disturbance
- Powerwall+ inverter stuck in Standby, flashing green
- Powerwall+ solar drops to zero repeatedly on sunny days
- Powerwall+ inverter dies within weeks of install
- Powerwall+ inverter drips rainwater after storms
third-party solar inverter and monitoring link
low-voltage communication harness
- Powerwall capacity halves, one unit stops responding
- Storm surge leaves multiple Powerwalls completely dead
- Follower Powerwall 3 missing from device scan
gateway internal wiring and breakers
- Circuit trips right after Tesla panel upgrade
- Gateway breaker open, internal wire found burned
- Gateway never meters one circuit, bill stays high
- Gateway 2 fuse carrier overheats under high import
- Gateway shows Powerwall Disconnected after a storm
- Pool pump breaker trips weeks after Tesla install
integrated inverter
- Powerwall 3 dead, will not restart or grid-charge
- Powerwall 3 LED flashing white, internal communication error
- Powerwall 3 breaker trips while exporting during calibration
grid voltage and power quality
- Grid voltage sags below 138V, forces Powerwall backup
- Grid voltage above rated limit, Powerwall sits idle
utility smart meter interaction
coolant loop
MPPT solar inputs
- Powerwall 3 solar input smells like burning plastic
- Powerwall 3 MPPT input greyed out, zero production
- Powerwall 3 PV isolation fault every morning, self-clears
- Powerwall 3 string shuts down and restarts constantly