When compressing air, it often contains many impurities and water, so it needs to go through the air dryer system before entering the ducts which help to dry and clean compressed air, it would be said that the air dryer plays an important role in the air compressor system. The failure of the air dryer will cause the compressed air to contain a lot of steam, which will affect the quality of the product, so today I would like to show you how to repair the air dryer with the following basic errors:
REPAIR OF THE AIR DRYER WITH THE PROBLEM OF WATER IN COMPRESSED AIR
Failure to separate water will result in the following air dryer conditions:
- Compressed air pipe system is not suitable
Causes and remedies for the above situation include:
– The bypass valve is not fully closed: Repair by re-checking the bypass valve
– Compressed air cannot pass through the air dryer: Repair by opening all the air inlet and outlet valves of the air dryer
– Air dryer not placed on a flat surface: Repair by placing the machine on a flat surface
– Tilt automatic drain valve: Repair by re-aligning the position of the drain valve.
– Drainpipe is higher than the drain valve: Repair by re-installing the drain pipe.
- The compressed air flow generated by the air compressor is too large
– The amount of air produced by the air compressor is larger than the air dryer can be dried, so it is necessary to correct this error by redesigning the compressed air system by replacing the air dryer with a larger capacity or invest an additional air dryer.
- Drainage system is not normal
Causes and solutions to repair the air dryer with the above condition include:
– Drain valve is not good or damaged: repair by cleaning or replacing.
– The front of the drain valve is not fully open: fix it by making sure the drain valve is fully open
- The evaporator temperature gauge is not normal
Causes and solutions to repair the air dryer with the above condition include:
– Dew point temperature too high: Repair by adjusting the hot gas damper.
– Ambient temperature or inlet air temperature is too low: Repair by turning off the machine when the ambient temperature drops below 2 degrees Celsius.
– The air is dirty or the ventilation system is not good: Repair by choosing an appropriate installation location of the air dryer or improving the ventilation of the room with the compressor + air dryer.
– Refrigeration gas leaks, so the cooling performance is not good: Repair by fixing the leak and pumping enough refrigerant.
REPAIR OF THE AIR DRYER WITH THE PROBLEM THAT DOESN’T WORKS THE AIR DRYER
The failure of the air dryer will result in the following conditions
- Power has not been supplied to the air dryer
Causes and solutions to repair the air dryer with the above condition include:
– The fuse is broken or the circuit breaker (aptomat) is broken: Repair by checking if the source is short-circuited, out of phase, grounded, and checking if the circuit breaker is damaged.
– Broken power cord: Repair by finding and fixing the break.
- Repairing an air dryer that cannot operate when the power is on
Causes and solutions to repair the air dryer with the above condition include:
– The voltage supplied to the air dryer is too high or too low: Repair by ensuring that the power supply to the air dryer is +/-10% compared to the voltage specified on the air dryer label.
– Damaged contacts: Repair by cleaning or replacing contacts.
– Contactors broken: Repair by replacing new.
– Damaged temperature relay: Repair by replacing.
– Damaged pressure relay: Repair by replacing.
– Damaged gas compressor: Repair by replacing.
- Repair the air dryer when the contacts are normal but the machine still won’t start
Causes and solutions to repair the air dryer with the above condition include:
– Pressure relays or thermal relays operate: Repair by finding the cause of these relays to operate, then press the Reset button
– Open circuit compressor: Repair by replacing.
– Loose electrical connections: Check and fix
- Repair the air dryer with the problem of the machine not working properly
The failure of the air dryer will result in the following conditions
– Voltage is not normal
After starting the air dryer for a while, the machine is short-circuited and smells: repair by checking if the electrical circuit is abnormal, the connections are tight
– After pressing the reset button, the air dryer still does not work
Causes and solutions to repair the air dryer with the above condition include:
– The pressure relay is broken and the cooling fan stops: repair by replacing it
– The air dryer is overloaded and disconnected: Need to check the relay again
– The heatsink is too dirty and clogged: Repair by cleaning the heatsink
