China bus before the automatic door to play the open, can not close the door and the solenoid valve leak is what reason?
See if the actuator and solenoid valve connections are tightened
Remove the electromagnetic valve to check whether the seal is damaged or missing, or the coil and the valve body parts of the leak.
Check the connector and muffler is damaged, if the maintenance of trouble, then you can consider replacing one.
You will be directly connected to the gas source on the gas, if the same problem is the cylinder seal to die, if it can be closed, it is a solenoid valve problems, it is recommended to change the new.
