MALFUNCTION CAUSE OF DOOR LOCK ACTUATOR MOTOR: 1. Most of the time, the Remote Control is out of Power or Broken 2. The Door Lock Actuator itself is Broken 3. The Central Control Module or the Fuse has Burnt 4. There is a problem with the Signal wire from the Door Lock, or with the Central Control box 5. Not connected to power When Do We Need to Replace the Door Lock Actuator ?