Seeing an E1 or E2 error code flash on your BH Fitness treadmill console can be frustrating, especially when it interrupts a workout. On most BH Fitness models, these codes are related to the drive system—specifically the communication between the motor, the speed sensor, and the control board.
While specific definitions can vary slightly depending on the age of your machine (check your manual to be certain), E1 is typically a Speed Sensor Error, and E2 generally indicates a Motor or Controller Fault. Before you call a technician, there are several troubleshooting steps you can perform at home to potentially resolve the issue.
Troubleshooting Error E1: The Speed Sensor
The E1 code usually appears when the console sends a command to the motor to move, but the computer does not receive a signal back indicating that the belt is actually moving. This often happens 7–10 seconds after pressing start.
1. Check the Safety Key: On some older units, E1 is simply a disengaged safety key. Remove and re-insert the magnet key firmly.
2. Inspect the Speed Sensor (Reed Switch): Most BH treadmills use a magnetic sensor located near the front roller (under the motor hood) to count revolutions.
- Unplug the treadmill.
- Remove the motor hood cover.
- Locate the speed sensor near the front roller pulley. There should be a small magnet glued to the pulley and a sensor pointing at it.
- Check Alignment: The sensor should be within 2–4mm of the magnet but not touching it. If the vibration has moved the sensor too far away, gently bend the bracket back into range.
- Clean the Sensor: Wipe away any dust or belt debris blocking the sensor.
Troubleshooting Error E2: Wiring and Controller
The E2 error often points to a disruption in the power supply to the motor or a communication break between the upper console and the lower control board.
1. Check the Cable Harness: The most common cause for E2 is a loose connection in the wire harness that runs up the upright post. These wires can get pinched or disconnected during assembly or moving.
- Unplug the machine.
- Disconnect and reconnect the cable plugs at the base of the upright and behind the console. Ensure no pins are bent.
2. Motor Control Board Inspection: If the wiring is sound, the lower control board (MCB) may be failing to drive the motor. Inspect the board for any burnt smells or blackened components. If the board is damaged, it will likely need professional replacement.
Is Your Motor Wearing Out?
Recurring E1/E2 errors can sometimes be a symptom of a worn-out walking belt. If the belt creates too much friction, it pulls high amperage, causing the controller to shut down to protect itself. If you haven't lubricated your deck in over 6 months, apply 100% silicone treadmill lubricant immediately. If the errors persist despite troubleshooting, it might be time to consider whether the cost of a replacement motor and board outweighs the value of the machine.
If you are looking to upgrade to a newer BH Fitness model with modern diagnostics and enhanced durability, here are the top recommendations currently available:
For those seeking a heavier-duty option closer to what you might find in a commercial gym, the LK700T Core offers a massive AC motor that is far less prone to the friction-based overheating that causes E1/E2 errors in residential DC motor units.
Final Safety Note
Always unplug your treadmill before removing the motor hood or touching internal components. Electronic capacitors can hold a charge even after power is disconnected. If these basic fixes do not clear the E1 or E2 codes, we recommend contacting BH Fitness support or a certified fitness equipment repair technician.