The rolling shutter door cannot be opened. There are several situations

There are several situations when the rolling shutter door cannot be opened: if the rolling shutter door cannot roll the drive bearing well, replace the parts or clean the impurities; if the door lock of the rolling shutter door cannot be opened or the key cannot be inserted, replace the door lock or clean the impurities; if the rolling shutter door is difficult to start, it is not smooth, and the harsh sound needs to be treated with lubricating oil.

1. The roller shutter door cannot roll up the drive shaft

Repair method: the problem may be that the spring is broken or the connection of the spring. When repairing, just replace the spring on the spring. If it is an electric roller shutter door, the impurities in the track are removed because the roller shutter slide is stuck.

2. The roller shutter door cannot be opened or inserted.

Repair method: there may be a problem with the door lock or the dust on the key** The first case is to replace the door lock, and the second case is to clean the hole of the key.

3. The rolling shutter door does not start smoothly and makes noise

Maintenance: the reason for the loud noise or vibration of the engine may be that the brake is not fixed or damaged. Replace the lubricated pin shaft or bearing and check whether the brake disc cap is tightened.

Expansion: when the automatic rolling shutter door is used daily, attention should be paid to the cleaning of the inside of the track, and the accumulation of sundries will affect its work. Some small problems in daily life should be solved in time without delay, otherwise the liquidity of the company will be affected. If the electric roller shutter door is only used and lacks maintenance for a long time, it will cause great potential safety problems. To prevent accidents, operators shall pay attention to safe operation during operation.