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Air compressor failure: comprehensive failure analysis

Author : Runningway

Update time : 2020-04-24 09:09:35

Air compressors often fail. If the following failures occur, don't worry, first try to use the experience of Yiju service personnel to step by step:

The compressor does not supply air:

1) Check whether the control cylinder is in motion, check the butterfly valve for mechanical failure;

2) Check whether the loaded electromagnetic coil has suction power;

3) Check the sub-circuit where the solenoid valve is located one by one.

The compressor cannot start:

1) Check whether there is control voltage, if not, check whether the fuse, etc. are intact;

2) Check whether the control relay and time relay are operating normally.

The compressor runs normally, and it is difficult to start after shutdown:

1) The grade of lubricating oil used is incorrect, and the oil should be changed thoroughly after cleaning;

2) The oil is sticky and coking and should be changed thoroughly after cleaning;

3) The shaft seal is seriously leaking, remove and replace;

4) The original position of the unloading flap changes, and readjust the position.

The compressor does not start smoothly, and it automatically stops after a few seconds of startup:

1) Check whether the automatic air switch jumps and the voltage is normal, should be excluded;

2) Check whether the intake butterfly valve is closed properly, and it should be checked and readjusted or replaced;

3) Check whether the contactor and motor three-phase are normal during Y- △ start.

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