无介质或输送介质流量小：使转子主轴与稳定轴承干摩，烧碎轴承。磁力泵是由输送介质给滑动轴承提供润滑和冷却的，在没有开入口阀或出口阀的情况下，滑动轴承因无输送介质润滑和冷却而导致高温从而损坏。
隔离套损坏：磁力泵的磁力联轴器是由泵所输送介质冷却的，如果介质中有硬质颗粒，很容易造成隔离套划伤或划穿，有时如果维护方法不当也有可能造成隔离套的损坏。
磁力泵因气蚀而导致的问题：泵产生气蚀的原因主要有泵入口管阻大、输送介质气相较多、灌泵不充分、泵入口能头不够等原因。气蚀对泵的危害大，发生气蚀时泵剧烈振动，平衡严重破坏，将导致泵轴承、转子或叶轮损坏。这是磁力泵故障发生的常见原因(图\文www.wxjpby.com/)。
中译英：
No media or transmission medium flow so that the rotor spindle and bearings: stable dry friction, burning up the bearing. Magnetic pump is determined by the conveying medium for sliding bearing for lubrication and cooling, in the absence of open entrance valve or outlet valve, sliding bearing for lubrication and cooling conveying medium to high temperature and damage.
The isolation sleeve damage: magnetic pump magnetic coupling is pumped by the transmission medium cooling, if in the medium of hard particles, is very easy to cause the isolation sleeve scratch or cut through, sometimes if maintenance methods also have the potential to cause the isolation sleeve damage.
Magnetic pump due to cavitation which leads to the question: pump cavitation main pump entrance pipe resistance big, medium gas phase more, irrigation pump, pump entrance can not fully head is insufficient wait for a reason. The pump cavitation damage, cavitation occurs when the pump vibration, balance seriously damaged, will cause the pump bearing, rotor or impeller damage. This is a common cause of magnetic pump fault.