1, circuit board failure, when the circuit board in the dial is broken, it will also lead to the battery is not charged, as long as the replacement or repair of the circuit board.
< br >
2, the battery plate vulcanization, if the plate vulcanization, charge and discharge will show that the voltage rises quickly, the capacity is significantly reduced, should be used to repair the equipment to remove sulfur, so that the plate reduction, restore activity.
< br >
3, the fuse contact is poor, when the contact between the safety tube and the safety seat is poor, the battery will not be charged or charged, as long as the position of the two is adjusted well, so that the contact is good, the problem is solved.
< br >
4, the internal plug-in is in poor contact, the plug-in in the battery is in poor contact or the lead is broken, it will also lead to no charging, as long as you re-plug or change the line, you can restore normal charging.
The shrapnel inside the air pump is softened for too long. When the pressure of the air reservoir reaches a certain air pressure, the shrapnel can not spring up due to the back pressure of the air reservoir.
< br >
2, the air pump pipe is blocked, if the pipe is blocked is very good to check, that is, the air pump pipe from the side of the dryer can be opened to check;
< br >
3, one of the four circuit of the air leakage, the four circuit is the automatic closure of the protective valve, see if the pressure gauge is not a needle can play to 6 pressure, the other needle is no pressure, if it is, then it is the fault caused.