Tricycle Error Codes Explained

E01 – Throttle Fault

The throttle isn’t being detected or is stuck.

Make sure the throttle moves smoothly and doesn’t stick when you press it. Check that the throttle plug is fully connected and the arrows on the connectors are properly lined up. If it still doesn’t work, unplug it and plug it back in firmly.

E02 – Brake Sensor Issue

The system thinks the brakes are on, which cuts power to the motor.

Check that the brake sensor cables are plugged in properly and not damaged. Make sure the brake levers move freely and aren’t stuck. Try unplugging test riding the trike then re-plugging both brake sensors.

E03 – Motor Connection

The motor and controller aren’t communicating properly.

Check the large motor cable near the wheel for any dirt or water inside the plug. Unplug it carefully, clean it if necessary, then reconnect it making sure the arrows are lined up.

E04 – Throttle Fault

The throttle signal is lost or shorted.

Make sure the throttle connector is properly plugged in. Inspect the cable for any visible damage. If you’ve recently adjusted the handlebars, ensure the wire isn’t pulled too tight or pinched.

E06 – Low Voltage

The battery voltage is too low for safe operation.

Fully charge the battery, then check the battery output with a multimeter if available. If the trike cuts out under load, the battery might be weakening and may need inspection.

E07 – Overvoltage

The battery voltage is too high for the system.

Turn the trike off, disconnect the battery, and reconnect it after a few minutes. Check that you’re using the correct battery type. If you have a multimeter, verify that the battery voltage matches the rated system voltage (usually 48V).

E08 – Hall Sensor Issue

The motor’s internal sensors aren’t reading correctly.

Unplug and reconnect the motor cable, making sure the arrows line up perfectly. Check for bent pins or dirt inside the connector. If the issue continues, the Hall sensor in the motor may need replacement.

E09 – Controller Overheat

The controller has overheated during use.

Stop riding and allow the trike to cool for at least 15–30 minutes. Avoid long climbs on full power or heavy loads. Once cooled, restart the trike and test again.

E10 – Communication Error

The display and controller are not communicating properly.

Check all display and ECU (controller) connectors. Unplug and re-plug each one carefully, ensuring they are firmly seated. Look for damaged pins or signs of moisture.

E30 – Communication Fault

The most common error — general communication issue between main components.

Unplug and reconnect all major cables: display, throttle, motor, and brake sensors. Ensure each plug’s arrows align correctly. If the issue continues, a deeper check of the controller or display may be needed.

E01 – Throttle Fault

The throttle isn’t sending the correct signal to the system.

Check the throttle cable and connector to make sure it’s firmly plugged in and not damaged. Ensure the arrows on the plugs line up correctly. Press the throttle gently to confirm it moves smoothly and doesn’t stick.

E02 – Brake Sensor Issue

The system thinks the brakes are being applied, cutting power to the motor.

Check that the brake sensors are plugged in properly and the brake levers are not stuck in the “on” position. You can also unplug each brake sensor one at a time then ride the trike to see if the issue clears.

E03 – Speed Sensor Fault

The motor isn’t getting a signal from the speed sensor on the wheel.

Make sure the small magnet on the rear wheel spoke is aligned with the sensor (about 2–3 mm apart). Clean both the magnet and sensor if there’s dirt or debris. If the magnet has moved or fallen off, reposition or replace it.

E04 – Torque Sensor Error

The torque sensor, which measures how hard you pedal, isn’t working properly.

Contact Jorvik

E05 – Calibration Issue

The torque or pedal sensor needs recalibration.

Turn the trike off completely, wait 30 seconds, and turn it back on. Make sure you’re not pressing the pedals when powering up, as this can affect calibration. Try a restart with no pedal pressure.

E06 – Low Voltage

The battery voltage is too low for the motor to run safely.

Fully charge the battery and check the charger is working correctly. If the issue continues, the battery may be weakening, If you have a multimeter, check that the battery output matches your trike’s system voltage (48V).or replaced. Avoid storing the trike with a flat battery.

E07 – Overvoltage

The system is receiving too much voltage from the battery.

Disconnect and reconnect the battery. If using an external charger, make sure it’s the correct type for your battery. If you have a multimeter, check that the battery output matches your trike’s system voltage (48V).

E08 – Hall Sensor Error

The motor’s internal sensors are not sending signals correctly.

This usually means an internal fault in the motor core. Check the motor cable for damage and make sure it’s fully connected. If the issue remains, the motor may need professional testing or replacement.

E09 – Controller Overheat

The controller has become too hot during use.

Stop using the trike and allow it to cool down for at least 15–30 minutes. Avoid using high assist levels for long periods or climbing steep hills at full power. Once cooled, restart and test.

E10 – Communication Error

The controller and display aren’t communicating properly.

Check all display and ECU connectors. Unplug and re-plug carefully, ensuring the arrows are aligned. Look for bent pins or moisture in the connectors.

E30 – Communication Fault

A general communication error between main components.

Unplug and reconnect all display, throttle, brake, and motor connections. Ensure each plug’s arrows are properly lined up. If the problem continues, a professional diagnosis of the controller or display may be needed.