1. Dynamic weakness of the roller means that the roller can't rotate, is blocked by external force, and is damaged internally, or foreign objects are generated between the roller and the mattress cover due to air pressure. You can try to check whether the drum is affected by external forces, remove any external forces, and check whether there are any sundries mixed in the drum.
2. If the upper cover is too tight and affects the smoothness of the roller, it is necessary to optimize the fastening degree of the upper cover. If all the above methods fail, send the physiotherapy bed to the after-sales service station for professional maintenance. Health Square Wen Yu physiotherapy bed is a multifunctional massage bed, which integrates ancient China acupuncture, cupping and massage techniques, and integrates modern physiotherapy, health care and other emerging treatment technologies. Using infrared hyperthermia machine can help you adjust your body quickly, relieve muscle aches and relax your body and mind.