Why can't my stair climbing machine be used after it is fully charged?
Please do the following troubleshooting methods:
1) Turn the key to turn on the machine
2) See if the battery light is on
Open the box of the circuit board below, turn on the power to see if the power light on the circuit board is on. If it is not on, check whether the power cord (discharge wire) is loose. If it is on, check whether the spring wire is loose