Official DP stepper parts

Troubleshooting your DP stepper when incorrect speed is displayed on the console

A problem with the reed switch, wiring failure or faulty console can cause the incorrect speed to be displayed.

Unplug the stepper if it has a power cord and check the position of the reed switch if displayed speed is extremely slow when you're treading at a fast pace. The reed switch won't detect the crank arm pulley magnet if the switch is too far away from the pulley. Adjust the reed switch closer to the pulley so the reed switch detects the magnet and sends the proper speed signal to the console.

If the reed switch is properly positioned close to the crank arm pulley, check wiring between the reed switch and the console. Reconnect any loose wires and repair any broken wires.

If the wires are okay, you may need to replace the console because it isn't displaying the correct speed even though it's receiving the correct speed signal from the reed switch.

How to fix your DP stepper when resistance won't change

If pedal resistance sticks on one setting, the resistance motor could be defective. Many steppers offer workout programs that vary resistance automatically during the routine. If resistance during the uphill climbs on a pre-programmed workout feels the same as the downhill treks, try manually changing the resistance. If you can change resistance manually, then you'll likely need to replace the console.

Most steppers use battery power to change resistance, so checking for DC voltage going to the resistance motor is safe and easy. If batteries power your stepper's control system, use a multimeter to measure voltage at the resistance motor when you manually adjust resistance on the console. Replace the console if it doesn't send voltage to the resistance motor when you manually change resistance. Replace the resistance motor if it doesn't run when getting voltage from the console.