ChargePoint
ChargePoint EV Home Chargers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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CP-A0
The charger will not start a charging session; the front LED ring is solid red; the ChargePoint app shows a generic fault and refuses to start charging.
General Charger Fault Lockout
CP-A1
The charger reports a ground fault; the LED ring is red or flashing red; the app or web interface shows a ground fault or GFCI trip; charging stops immediately after plug-in.
Ground Fault / GFCI Trip
CP-A2
The charger shows an overcurrent or overload error; charging stops after a few seconds or minutes; the app indicates that the current exceeded the limit.
Output Overcurrent Protection Trip
CP-A3
The charger reports overvoltage on the AC input; the app or local display shows that the line voltage is too high; charging is disabled.
AC Input Overvoltage Protection
CP-A4
The charger reports undervoltage or low line voltage; charging stops or will not start; the app shows a low voltage warning.
AC Input Undervoltage Protection
CP-A5
The charger reports overtemperature; the LED ring is red or amber; the app shows a thermal fault; charging derates or stops during the session.
Internal Overtemperature Protection
CP-A6
The charger reports a contactor fault; the app or diagnostics show a contactor weld or contactor open error; charging is disabled.
Power Contactor Welded or Fails to Close
CP-A7
The charger reports a pilot signal fault; the vehicle does not recognize the charger; the app shows an EVSE communication error.
Pilot Signal Generation / Detection Failure
CP-A8
The charger reports a proximity switch fault; vehicle latch detection is not working; the plug may be difficult to remove or charging stops unexpectedly when the cable is moved.
Proximity Detection Circuit Failure
CP-A9
Charger reports relay self-test failure or an isolation fault; the unit refuses to energize the output.
Isolation / Self-Test Failure
CP-B0
The charger will not connect to Wi-Fi; the app cannot reach the charger; the LED may show normal charging status, but remote control and updates fail.
Wi-Fi Communication Failure
CP-B1
The charger cannot connect to the cellular network (for models with LTE); the app shows offline; local charging may still work.
Cellular Modem Communication Failure
CP-B2
The charger firmware update fails repeatedly; the app shows an update error; the charger may reboot frequently.
Firmware Update / Flash Memory Error
CP-B3
The charger reports an internal communication error between the logic board and the power board; charging is disabled.
Internal CAN / Serial Bus Communication Failure
CP-C0
The charger reports a stuck button or touch panel fault (for models with local buttons); the user cannot start or stop charging from the unit.
User Interface Button / Touch Sensor Failure
CP-C1
The LED ring or status lights are not working correctly; the charger otherwise charges normally; the app shows the correct status.
LED Indicator Failure
CP-C2
The RFID card reader on the charger (if equipped) does not recognize cards; the app still works.
RFID Reader Failure
CP-D0
The charger reports a schedule conflict or a time synchronization error; scheduled charging does not start at the expected time.
Real-Time Clock / Time Sync Error
Symptom
Breaker trips immediately or shortly after starting a charge, sometimes accompanied by a pop or smell near the panel.
Short Circuit or Overload on Supply Circuit
Symptom
ChargePoint app shows incorrect energy usage or cost for sessions; kWh seems too high or too low.
Energy Metering Inaccuracy
Symptom
Charger cable insulation shows cracks, cuts, or severe UV damage; internal conductors may be visible.
Physical Cable Damage
Symptom
Charger does not respect maximum current setting; draws more or less than configured according to external meter.
Current Limit Control Malfunction
Symptom
Charger emits a strong electrical or burning smell during or after charging; may or may not show errors.
Overheating Component / Insulation Breakdown
Symptom
Charger fails to start after a recent electrical storm; LEDs may be off or show fault; other home circuits work.
Surge Damage / SPD Failure
Symptom
Charger hums or vibrates excessively when mounted on the wall; noise transmits into the structure.
Mechanical Vibration / Resonance
Symptom
Charger makes loud buzzing or chattering noises during operation; may coincide with flickering LEDs or intermittent charging.
Noisy or Chattering Contactor / Coil
Symptom
Charger or cable becomes unusually hot during normal charging; plastic may feel soft or discolored near the connector.
Overheating Connector or Cable
Symptom
Charger randomly reboots during charging; LEDs go dark then restart; the session may stop or resume.
Unexpected Power Cycling / Brownout Reset
Symptom
Charger repeatedly loses connection to app or network but continues charging; offline/online notifications frequent.
Intermittent Network Connectivity
Symptom
Charging starts but stops after a few minutes without any visible error; LED returns to ready; the app may show the session ended by the EV.
Intermittent Charging Session Drop
Symptom
Front cover or enclosure is cracked, warped, or does not close properly; internal components may be exposed.
Damaged Enclosure / Compromised IP Rating
Symptom
Mounting bracket is loose or charger wobbles when plugging/unplugging; screws may be pulling out of wall.
Loose or Inadequate Mounting
Symptom
The charger LED ring stays in "charging" color even after the vehicle is fully charged and has stopped drawing power.
Status Indication Logic Error
Symptom
The charger has no power at all; the LED ring is off; the app cannot find the charger; the breaker appears to be on.
No Power / Dead Unit
Symptom
Vehicle is plugged in but does not start charging; charger LED shows ready/idle; no error in the app; other EVs may charge fine.
EV Communication / Compatibility Issue
Symptom
Water or condensation visible inside the charger housing or dripping from the bottom; may coincide with ground faults or random errors.
Water Ingress / Moisture Contamination
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CP-A0 |
The charger will not start a charging session; the front LED ring is solid red; the ChargePoint app shows a generic fault and refuses to start charging.
|
General Charger Fault Lockout | View Details |
| CP-A1 |
The charger reports a ground fault; the LED ring is red or flashing red; the app or web interface shows a ground fault or GFCI trip; charging stops immediately after plug-in.
|
Ground Fault / GFCI Trip | View Details |
| CP-A2 |
The charger shows an overcurrent or overload error; charging stops after a few seconds or minutes; the app indicates that the current exceeded the limit.
|
Output Overcurrent Protection Trip | View Details |
| CP-A3 |
The charger reports overvoltage on the AC input; the app or local display shows that the line voltage is too high; charging is disabled.
|
AC Input Overvoltage Protection | View Details |
| CP-A4 |
The charger reports undervoltage or low line voltage; charging stops or will not start; the app shows a low voltage warning.
|
AC Input Undervoltage Protection | View Details |
| CP-A5 |
The charger reports overtemperature; the LED ring is red or amber; the app shows a thermal fault; charging derates or stops during the session.
|
Internal Overtemperature Protection | View Details |
| CP-A6 |
The charger reports a contactor fault; the app or diagnostics show a contactor weld or contactor open error; charging is disabled.
|
Power Contactor Welded or Fails to Close | View Details |
| CP-A7 |
The charger reports a pilot signal fault; the vehicle does not recognize the charger; the app shows an EVSE communication error.
|
Pilot Signal Generation / Detection Failure | View Details |
| CP-A8 |
The charger reports a proximity switch fault; vehicle latch detection is not working; the plug may be difficult to remove or charging stops unexpectedly when the cable is moved.
|
Proximity Detection Circuit Failure | View Details |
| CP-A9 |
Charger reports relay self-test failure or an isolation fault; the unit refuses to energize the output.
|
Isolation / Self-Test Failure | View Details |
| CP-B0 |
The charger will not connect to Wi-Fi; the app cannot reach the charger; the LED may show normal charging status, but remote control and updates fail.
|
Wi-Fi Communication Failure | View Details |
| CP-B1 |
The charger cannot connect to the cellular network (for models with LTE); the app shows offline; local charging may still work.
|
Cellular Modem Communication Failure | View Details |
| CP-B2 |
The charger firmware update fails repeatedly; the app shows an update error; the charger may reboot frequently.
|
Firmware Update / Flash Memory Error | View Details |
| CP-B3 |
The charger reports an internal communication error between the logic board and the power board; charging is disabled.
|
Internal CAN / Serial Bus Communication Failure | View Details |
| CP-C0 |
The charger reports a stuck button or touch panel fault (for models with local buttons); the user cannot start or stop charging from the unit.
|
User Interface Button / Touch Sensor Failure | View Details |
| CP-C1 |
The LED ring or status lights are not working correctly; the charger otherwise charges normally; the app shows the correct status.
|
LED Indicator Failure | View Details |
| CP-C2 |
The RFID card reader on the charger (if equipped) does not recognize cards; the app still works.
|
RFID Reader Failure | View Details |
| CP-D0 |
The charger reports a schedule conflict or a time synchronization error; scheduled charging does not start at the expected time.
|
Real-Time Clock / Time Sync Error | View Details |
| – |
Breaker trips immediately or shortly after starting a charge, sometimes accompanied by a pop or smell near the panel.
|
Short Circuit or Overload on Supply Circuit | View Details |
| – |
ChargePoint app shows incorrect energy usage or cost for sessions; kWh seems too high or too low.
|
Energy Metering Inaccuracy | View Details |
| – |
Charger cable insulation shows cracks, cuts, or severe UV damage; internal conductors may be visible.
|
Physical Cable Damage | View Details |
| – |
Charger does not respect maximum current setting; draws more or less than configured according to external meter.
|
Current Limit Control Malfunction | View Details |
| – |
Charger emits a strong electrical or burning smell during or after charging; may or may not show errors.
|
Overheating Component / Insulation Breakdown | View Details |
| – |
Charger fails to start after a recent electrical storm; LEDs may be off or show fault; other home circuits work.
|
Surge Damage / SPD Failure | View Details |
| – |
Charger hums or vibrates excessively when mounted on the wall; noise transmits into the structure.
|
Mechanical Vibration / Resonance | View Details |
| – |
Charger makes loud buzzing or chattering noises during operation; may coincide with flickering LEDs or intermittent charging.
|
Noisy or Chattering Contactor / Coil | View Details |
| – |
Charger or cable becomes unusually hot during normal charging; plastic may feel soft or discolored near the connector.
|
Overheating Connector or Cable | View Details |
| – |
Charger randomly reboots during charging; LEDs go dark then restart; the session may stop or resume.
|
Unexpected Power Cycling / Brownout Reset | View Details |
| – |
Charger repeatedly loses connection to app or network but continues charging; offline/online notifications frequent.
|
Intermittent Network Connectivity | View Details |
| – |
Charging starts but stops after a few minutes without any visible error; LED returns to ready; the app may show the session ended by the EV.
|
Intermittent Charging Session Drop | View Details |
| – |
Front cover or enclosure is cracked, warped, or does not close properly; internal components may be exposed.
|
Damaged Enclosure / Compromised IP Rating | View Details |
| – |
Mounting bracket is loose or charger wobbles when plugging/unplugging; screws may be pulling out of wall.
|
Loose or Inadequate Mounting | View Details |
| – |
The charger LED ring stays in "charging" color even after the vehicle is fully charged and has stopped drawing power.
|
Status Indication Logic Error | View Details |
| – |
The charger has no power at all; the LED ring is off; the app cannot find the charger; the breaker appears to be on.
|
No Power / Dead Unit | View Details |
| – |
Vehicle is plugged in but does not start charging; charger LED shows ready/idle; no error in the app; other EVs may charge fine.
|
EV Communication / Compatibility Issue | View Details |
| – |
Water or condensation visible inside the charger housing or dripping from the bottom; may coincide with ground faults or random errors.
|
Water Ingress / Moisture Contamination | View Details |
No matching codes found
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