Rolec
Rolec 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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E01
The charger will not start charging; the front LED shows solid red with E01 on the display or in the Rolec app.
Proximity / Pilot Signal Fault
E02
The charging session terminates immediately after plugging in; the charger shows E02 and a red LED, and the vehicle does not begin charging.
Contactor / Relay Welded or Not Pulling In
E03
The charger displays E03 and refuses to start; the vehicle may show an earthing or installation fault message.
Earth Fault / Protective Earth Monitoring Error
E04
The charger shows E04 and a red LED; charging stops or will not start, often after a storm or power fluctuation.
Overvoltage / Undervoltage Supply Fault
E05
The charger intermittently trips to E05 during or shortly after starting a charge; this may coincide with RCD tripping.
Residual Current / DC Leakage Fault
E06
The charger displays E06 and refuses to start; it is often logged as a "PEN fault" or "PME fault" in the app.
PEN Conductor / PME Fault Detection
E07
Charger displays E07; the fan may run at high speed, or the unit may feel unusually warm to the touch.
Overtemperature Protection Trip
E08
Charger displays E08 and will not initiate charging; often associated with communication issues with a smart meter or CT clamp.
Load Management / CT Clamp Communication Fault
E09
Charger displays E09; the app may indicate "RCD self-test failed" or similar; the unit refuses to charge.
Internal RCD Self-Test Failure
E10
Charger displays E10; the app or display may indicate "GPRS/4G communication error" or "OCPP server unreachable" on smart Rolec units.
Network / Backend Communication Fault
E11
Charger displays E11; the app may show "Wi-Fi connection failed" or "no internet" on Wi-Fi enabled Rolec home chargers.
Wi-Fi Connectivity Fault
E12
Charger displays E12; the app may indicate "RFID reader error" or "authorization device fault" on RFID-enabled Rolec units.
RFID Reader / Authentication Fault
E13
Charger displays E13; the app may show "meter error" or "MID meter communication fault" on metered Rolec units.
Internal Energy Meter Communication Fault
E14
Charger displays E14; the app may indicate "firmware error" or "configuration corrupted"; the unit may reboot repeatedly.
Firmware / Configuration Corruption
E15
Charger displays E15; the app may show "schedule conflict" or "time sync error"; scheduled charging does not start.
Real-Time Clock / Scheduling Fault
E16
Charger displays E16; the app may indicate "overcurrent" or "output current exceeded"; charging stops abruptly.
Overcurrent Protection Trip
E17
Charger displays E17; app may show "phase imbalance" or "phase loss" on three-phase Rolec units.
Phase Loss / Phase Imbalance Fault
E18
Charger shows E18; app may indicate "socket lock error"; Type 2 socket flap or locking pin will not engage or release.
Socket Locking Mechanism Fault
E19
Charger displays E19; app may show "pilot short to earth" or "CP fault"; charging cannot start.
Control Pilot Short / Ground Fault
E20
Charger shows E20; app may indicate "no vehicle detected" even when the plug is inserted; LEDs may stay in standby colour.
Vehicle Detection / Proximity Circuit Fault
Symptom
Burning smell or visible scorch marks around the Rolec charger or its cable during or after charging.
Overheating / Arcing at Connections
Symptom
Charger completely dead – no LEDs, no display, no response when vehicle is plugged in.
No Power / Supply Loss
Symptom
Charger enclosure feels excessively hot to the touch during normal charging, even in mild ambient temperatures.
Overheating Enclosure / Poor Thermal Management
Symptom
Charger makes loud humming or buzzing noises during charging, louder than typical contactor click and transformer hum.
Excessive Vibration / Acoustic Noise from Contactor or Coils
Symptom
Charger powers on but will not start charging; LEDs remain in ready/standby state and vehicle shows "charging not started" with no error code.
Charge Enable / Start Command Not Received
Symptom
Charger randomly reboots or restarts during charging, causing brief interruptions but then resumes.
Intermittent Control PCB Reset / Power Supply Instability
Symptom
Charger starts charging but stops after a few minutes without any error code on the front; vehicle may show "charging interrupted".
Intermittent Supply or Thermal Cut-Out
Symptom
Charger trips the house RCD or RCBO as soon as a vehicle is plugged in or charging starts.
Nuisance RCD Tripping / Earth Leakage
Symptom
Charger’s built‑in kWh readings or app energy reports are clearly inaccurate compared to the vehicle’s reported energy.
Energy Meter Calibration / Measurement Error
Symptom
Charger’s front LEDs are flashing in an unusual pattern not documented in the user guide, but no code is shown in the app.
Undocumented Firmware State / Minor Fault
Symptom
Charger’s front display or LEDs are completely blank, but the vehicle still charges normally when plugged in.
Display / LED Board Failure
Symptom
Charging speed is significantly lower than expected; vehicle shows reduced kW even though charger is rated higher.
Reduced Output Current / Derating
Symptom
Physical damage to the Rolec charger enclosure, such as cracks, broken hinges, or missing cover screws, but the unit remains operational.
Compromised Enclosure Integrity / IP Rating
Symptom
Rolec charger not visible in the mobile app or cannot be paired, even though LEDs indicate normal standby.
Pairing / Commissioning Failure
Symptom
Vehicle displays "check charging station" or similar generic error when connected to the Rolec charger, but other chargers work fine.
Compatibility / Signalling Tolerance Issue
Symptom
Vehicle reports "charging cable locked" or cannot be unplugged from the Rolec charger after charging completes.
Stuck Socket Lock / Mechanical Jam
Symptom
Visible water or condensation inside the transparent window or on internal components of the Rolec charger.
Moisture Ingress / Condensation
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
The charger will not start charging; the front LED shows solid red with E01 on the display or in the Rolec app.
|
Proximity / Pilot Signal Fault | View Details |
| E02 |
The charging session terminates immediately after plugging in; the charger shows E02 and a red LED, and the vehicle does not begin charging.
|
Contactor / Relay Welded or Not Pulling In | View Details |
| E03 |
The charger displays E03 and refuses to start; the vehicle may show an earthing or installation fault message.
|
Earth Fault / Protective Earth Monitoring Error | View Details |
| E04 |
The charger shows E04 and a red LED; charging stops or will not start, often after a storm or power fluctuation.
|
Overvoltage / Undervoltage Supply Fault | View Details |
| E05 |
The charger intermittently trips to E05 during or shortly after starting a charge; this may coincide with RCD tripping.
|
Residual Current / DC Leakage Fault | View Details |
| E06 |
The charger displays E06 and refuses to start; it is often logged as a "PEN fault" or "PME fault" in the app.
|
PEN Conductor / PME Fault Detection | View Details |
| E07 |
Charger displays E07; the fan may run at high speed, or the unit may feel unusually warm to the touch.
|
Overtemperature Protection Trip | View Details |
| E08 |
Charger displays E08 and will not initiate charging; often associated with communication issues with a smart meter or CT clamp.
|
Load Management / CT Clamp Communication Fault | View Details |
| E09 |
Charger displays E09; the app may indicate "RCD self-test failed" or similar; the unit refuses to charge.
|
Internal RCD Self-Test Failure | View Details |
| E10 |
Charger displays E10; the app or display may indicate "GPRS/4G communication error" or "OCPP server unreachable" on smart Rolec units.
|
Network / Backend Communication Fault | View Details |
| E11 |
Charger displays E11; the app may show "Wi-Fi connection failed" or "no internet" on Wi-Fi enabled Rolec home chargers.
|
Wi-Fi Connectivity Fault | View Details |
| E12 |
Charger displays E12; the app may indicate "RFID reader error" or "authorization device fault" on RFID-enabled Rolec units.
|
RFID Reader / Authentication Fault | View Details |
| E13 |
Charger displays E13; the app may show "meter error" or "MID meter communication fault" on metered Rolec units.
|
Internal Energy Meter Communication Fault | View Details |
| E14 |
Charger displays E14; the app may indicate "firmware error" or "configuration corrupted"; the unit may reboot repeatedly.
|
Firmware / Configuration Corruption | View Details |
| E15 |
Charger displays E15; the app may show "schedule conflict" or "time sync error"; scheduled charging does not start.
|
Real-Time Clock / Scheduling Fault | View Details |
| E16 |
Charger displays E16; the app may indicate "overcurrent" or "output current exceeded"; charging stops abruptly.
|
Overcurrent Protection Trip | View Details |
| E17 |
Charger displays E17; app may show "phase imbalance" or "phase loss" on three-phase Rolec units.
|
Phase Loss / Phase Imbalance Fault | View Details |
| E18 |
Charger shows E18; app may indicate "socket lock error"; Type 2 socket flap or locking pin will not engage or release.
|
Socket Locking Mechanism Fault | View Details |
| E19 |
Charger displays E19; app may show "pilot short to earth" or "CP fault"; charging cannot start.
|
Control Pilot Short / Ground Fault | View Details |
| E20 |
Charger shows E20; app may indicate "no vehicle detected" even when the plug is inserted; LEDs may stay in standby colour.
|
Vehicle Detection / Proximity Circuit Fault | View Details |
| – |
Burning smell or visible scorch marks around the Rolec charger or its cable during or after charging.
|
Overheating / Arcing at Connections | View Details |
| – |
Charger completely dead – no LEDs, no display, no response when vehicle is plugged in.
|
No Power / Supply Loss | View Details |
| – |
Charger enclosure feels excessively hot to the touch during normal charging, even in mild ambient temperatures.
|
Overheating Enclosure / Poor Thermal Management | View Details |
| – |
Charger makes loud humming or buzzing noises during charging, louder than typical contactor click and transformer hum.
|
Excessive Vibration / Acoustic Noise from Contactor or Coils | View Details |
| – |
Charger powers on but will not start charging; LEDs remain in ready/standby state and vehicle shows "charging not started" with no error code.
|
Charge Enable / Start Command Not Received | View Details |
| – |
Charger randomly reboots or restarts during charging, causing brief interruptions but then resumes.
|
Intermittent Control PCB Reset / Power Supply Instability | View Details |
| – |
Charger starts charging but stops after a few minutes without any error code on the front; vehicle may show "charging interrupted".
|
Intermittent Supply or Thermal Cut-Out | View Details |
| – |
Charger trips the house RCD or RCBO as soon as a vehicle is plugged in or charging starts.
|
Nuisance RCD Tripping / Earth Leakage | View Details |
| – |
Charger’s built‑in kWh readings or app energy reports are clearly inaccurate compared to the vehicle’s reported energy.
|
Energy Meter Calibration / Measurement Error | View Details |
| – |
Charger’s front LEDs are flashing in an unusual pattern not documented in the user guide, but no code is shown in the app.
|
Undocumented Firmware State / Minor Fault | View Details |
| – |
Charger’s front display or LEDs are completely blank, but the vehicle still charges normally when plugged in.
|
Display / LED Board Failure | View Details |
| – |
Charging speed is significantly lower than expected; vehicle shows reduced kW even though charger is rated higher.
|
Reduced Output Current / Derating | View Details |
| – |
Physical damage to the Rolec charger enclosure, such as cracks, broken hinges, or missing cover screws, but the unit remains operational.
|
Compromised Enclosure Integrity / IP Rating | View Details |
| – |
Rolec charger not visible in the mobile app or cannot be paired, even though LEDs indicate normal standby.
|
Pairing / Commissioning Failure | View Details |
| – |
Vehicle displays "check charging station" or similar generic error when connected to the Rolec charger, but other chargers work fine.
|
Compatibility / Signalling Tolerance Issue | View Details |
| – |
Vehicle reports "charging cable locked" or cannot be unplugged from the Rolec charger after charging completes.
|
Stuck Socket Lock / Mechanical Jam | View Details |
| – |
Visible water or condensation inside the transparent window or on internal components of the Rolec charger.
|
Moisture Ingress / Condensation | View Details |
No matching codes found
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