In the scorching summer, jiangmen ceiling fan It plays an unparalleled role in our lives, but after using it for a period of time, the large ceiling fan will also have problems, obviously due to the slow speed of the ceiling fan. There are many reasons for the slow speed of ceiling fans, but in summary, there are mainly four main reasons.

1. The speed controller is broken

If it is a new purchase, it may be that the ceiling fan speed controller is broken.

2. Lack of oil in bearings

If the bearing of the electric fan is short of oil, you can add some oil (using butter). If it is a turn to turn short circuit, the motor will overheat, so it needs to be wound from the beginning. The judgment of bearing problems can be made by listening to the sound, and if there is a problem with the bearing, it should be repaired by professional repair personnel.

3. Reduced capacitance

Most household appliances use single-phase power supply, but appliances with electric motors must have two or more phases of power supply. What should we do? The designer had already planned that in a single-phase circuit, a large capacitor would be connected in parallel. Due to the lag effect of the large capacitor on the current in the AC power supply (the current in a circuit with a capacitor is 90 degrees later than that in a circuit without a capacitor), the original input of one phase would become two phases, and the electric motor could work normally. The household appliances we use (single-phase) all follow this principle.

4. If the capacitance value decreases or there is high oil friction or inter turn short circuit, the capacitance value can be appropriately increased. However, it should not be too large, otherwise the motor temperature will increase and affect its lifespan. This is a synchronous motor, and the speed is determined by the frequency of the power supply. If there are no blades installed, the speed will also be 100 rpm. If more blades are installed, the load will be too heavy and the motor will not be able to start. The spring will repeatedly help start.

In addition, slow speed is not necessarily a problem with capacitors and bearings. Capacitors ensure that the fan can roll in the pre rolling direction. Check if the fan blades are deformed. If the wind surface decreases, it will affect the air volume. Also, check if the speed controller does not touch well, so that the gear is in a low level position.

Article source: Jiangmen ceiling fan www.gd-dx.cn