Treadmill, as a common fitness equipment, can help people to do aerobic exercise and improve cardiopulmonary function and physical fitness. However, after improper use or long-term use, the treadmill may have some faults, one of which is undervoltage fault. Under-voltage fault refers to the fault phenomenon that the treadmill can't operate normally, can't start or prompt that the power supply is insufficient when the required voltage is greater than the voltage provided to it.

Under-voltage faults usually have the following reasons:

1. Unstable power supply voltage: the voltage in some areas is unstable, resulting in insufficient power supply voltage or large fluctuation, which affects the use of the treadmill for a long time.

2. There is something wrong with the power cord: If the power cord of the treadmill has problems such as poor contact, damage and aging, it may also be an undervoltage fault.

3. Machine problem: If the motor or control system of the treadmill fails or ages, it may also lead to undervoltage failure.

In order to deal with the undervoltage fault, we can take the following measures:

1. Check whether the power cord is faulty first. If there is a problem with the power supply, you can replace the power supply line to solve the problem.

2. Check whether the power supply voltage is stable: use voltmeter and other instruments to check whether the voltage in the area where the treadmill is located is relatively stable. If the voltage is unstable, some methods can be adopted, such as adding line safety protection devices and voltage regulators.

3. Replace machine parts: If there is a problem with the motor or control system of the treadmill, you can replace the machine parts to solve the undervoltage fault.

In a word, when the treadmill encounters undervoltage fault, we can conduct a simple investigation first to find out the specific cause of the fault. Reasonable maintenance of treadmills is an important way to avoid undervoltage faults, and it can also bring users a faster, healthier and more comfortable fitness experience.