What is the fault when the angle grinder stops rotating?

[OLaila]

The angle grinder may stop rotating due to the following faults: 1. Power disconnection, simply repair the power supply. 2. Loose connection of the angle grinder, check all connections for correctness. 3. Poor contact of the switch, repair or replace the switch. 4. The brush is not in contact with the commutator surface, replace the carbon brush. 5. The switch contacts are burnt out, repair or replace the switch. 6. Mechanical parts are stuck, check and reassemble the mechanical parts. Extended information: Angle grinder usage tips: 1. Check if the angle grinder has a protective cover: Before use, always check if the angle grinder has a protective cover, if the protective cover is stable, and if the grinding disc is securely installed. 2. Do not use damaged grinding discs: It is strictly prohibited to use already damaged grinding discs. During cutting, prevent sparks from splashing, avoid splashing onto others, and keep away from flammable and explosive items. 3. Proper attire during use: Wear protective goggles and suitable work clothes. Do not wear overly loose work clothes, avoid wearing jewelry or keeping long hair, and strictly prohibit wearing gloves or operating with unbuttoned cuffs.