Summary of common faults of aerator: do-it-yourself quick repair

1. The aerator cannot be started. What is the reason?

The failure of the aerator to start is one of the common faults, usually related to power supply problems, motor failure or stuck transmission parts. First, check whether the power cord is loose, whether there is electricity in the socket, and whether the fuse is blown. If the power supply is normal, it may be that the motor starting capacitor is damaged, resulting in the motor not getting enough starting torque.

Secondly, check whether the impeller or shaft of the aerator is entangled or stuck by foreign objects, such as aquatic plants, plastic bags, etc. If the shaft is stuck, the motor will be overloaded and trigger the protection device, resulting in failure to start. At this time, it is necessary to clean up the foreign objects and check whether the bearings are worn. If necessary, add lubricating oil or replace the bearings.

Finally, if all the above are normal, it may be that the motor windings are burned or the controller is faulty. It is recommended to use a multimeter to measure the resistance value of the motor windings. If it shows open circuit or short circuit, you need to replace the motor or contact a professional maintenance personnel.

2. The aerator is noisy during operation, how to solve it?

The noise of the aerator is usually caused by mechanical wear, unstable installation or foreign body collision. First, check whether the aerator is placed smoothly and whether the anchor bolts are loose. If the installation is not firm, severe vibration and noise will be generated during operation, and the equipment should be re-fixed at this time.

Secondly, the noise may come from bearing wear or impeller deformation. Periodic abnormal noises will occur after bearing wear, and bearings of the same specification need to be replaced; impeller deformation will lead to imbalance, vibration and noise, and impeller should be corrected or replaced. In addition, check whether any foreign objects (such as stones, branches) are stuck in the impeller or protective cover, and clean it in time.

If the noise persists, it may be an internal fault of the motor, such as a rotor sweep or a loose fan blade. At this time, the machine needs to be disassembled for inspection, and the motor or fan assembly needs to be replaced if necessary.

3. The air output of the aerator becomes smaller, what should I do?

Reduced air output will directly affect the oxygenation effect. Common reasons include clogged filter screen, air leakage in the trachea or wear of the impeller. First, clean the filter screen of the air inlet to remove dust and impurities to ensure that the air intake is smooth. Second, check whether the trachea connection is well sealed. If it is damaged or aging, a new tube should be replaced.

If the aerator has a long service life, the impeller may increase the clearance due to wear and tear, which will affect the gas transportation efficiency. At this time, it is necessary to replace the impeller or adjust the clearance between the impeller and the air chamber. In addition, check whether the water level is too high, resulting in an increase in the back pressure of the air outlet, and appropriately reduce the water level or adjust the position of the air outlet.

Regular maintenance is the key to preventing a decline in air output. It is recommended to clean the filter every three months and check the impeller and seals annually.

4. What is the reason for the excessive current of the aerator?

Excessive current usually means that the motor is overloaded, which may be caused by voltage instability, mechanical failure, or problems with the motor itself. First, measure whether the power supply voltage is within the rated range. If the voltage is normal, check whether the transmission parts are stuck, such as bearing damage, impeller friction housing, etc.

Secondly, check whether the impeller is wound by foreign matter to increase the load. In addition, motor winding insulation aging or turn-to-turn short circuit can also lead to abnormal current. At this time, it is necessary to measure the winding resistance and replace the motor if necessary.

Long-term excessive current will burn the motor, so once an abnormality is found, it should be stopped immediately for inspection, and then run after troubleshooting.

5. How to detect and deal with the leakage of the aerator?

Leakage is a serious safety hazard and can be caused by broken wires, damp motors, or capacitor leakage. First, disconnect the power supply and check the power cord for damage or aging, paying particular attention to the joints. If damage is found, the cable should be replaced.

Secondly, the motor is a common cause of moisture, especially in humid environments for a long time. A megohm meter can be used to measure the insulation resistance of the motor winding to the ground. If it is lower than 500 billion ohms, the motor needs to be dried or painted. In addition, check whether the capacitor is leaking, and replace the capacitor of the same specification if necessary.

Install a leakage protector in the power circuit of the aerator and test its reliability regularly. If you can't solve it yourself, be sure to ask a professional electrician for maintenance.

6. The aerator vibrates violently, how to deal with it?

Severe vibration can accelerate equipment damage due to non-level installation, impeller imbalance or bearing wear. First, check whether the aerator is placed horizontally and adjust the anchor bolts or gaskets. Second, clean the impeller of attachments, such as moss or sludge, which can cause impeller imbalance.

If the impeller is deformed or worn, a new impeller needs to be replaced. In addition, check whether the bearing is worn or underlubricated, and add lubricating oil or replace the bearing in time. If the vibration comes from the motor, it may be a rotor imbalance or coupling deviation, which needs to be recalibrated.

Installing shock absorbers or using flexible connections can also effectively reduce vibration transmission.

7. How to check if the aerator burns fuses frequently?

Frequent fuse burning indicates that the circuit is short-circuited or overloaded. First, check whether the power cord is damaged, resulting in a short circuit to the ground. Second, check whether the motor windings are short-circuited and measure the phase resistance with a multimeter.

In addition, starting capacitor breakdown can also cause a short circuit, and the capacitor needs to be replaced. If the aerator burns insurance at the moment of startup, it may be that the starting current is too large. You can replace the fuse of the appropriate specification or use the delay insurance.

If the insurance is still burned frequently after investigation, it is recommended to ask a professional electrician to check the entire power supply line to ensure that there are no other faults.

8. What is the reason for the high temperature rise of the aerator?

Excessive temperature rise can affect the life of the motor, mostly due to poor heat dissipation, overload or abnormal voltage. First, check whether the motor fan is running normally, whether the heat sink is covered with dust, and clean the heat dissipation channel. Second, check whether the overload operation, such as the impeller diameter is too large or the speed is too high, should be adjusted to the rated parameters.

Too high or too low voltage can also cause temperature rise, so ensure that the power supply voltage is stable. In addition, motor bearing wear causes friction to increase, which can also cause temperature rise, and bearings need to be replaced.

If the temperature rise exceeds the specified value, it should be immediately shut down for cooling to avoid burning the motor.

9. The impeller of the aerator does not rotate, but the motor rotates. What's the matter?

This phenomenon is mostly caused by the failure of the transmission parts, such as broken belts, damaged gears or loose couplings. First, check whether the belt is loose or broken, adjust the tension or replace the belt. Second, check whether the gears in the gearbox are worn or stuck, and replace the gears and add lubricating oil if necessary.

If it is a direct connection, it may be that the coupling bolts are loose and can be re-tightened. In addition, check whether the impeller shaft is bent or stuck by foreign objects, causing it to fail to rotate.

Regularly check the transmission components and replace the wearing parts in a timely manner to avoid malfunction expansion.

10. The aerator stops automatically, how to reset it?

Automatic shutdown is usually a thermal protector or overload protector action. First, wait for the motor to cool down and press the reset button (some models need to be reset manually). If frequent shutdowns indicate overload or poor heat dissipation, check the load and heat dissipation system.

Check whether under-voltage protection is caused by voltage fluctuations, and install a voltage regulator to solve it. In addition, controller failure may also lead to accidental shutdown. You can check whether there is a fault code on the control panel and deal with it according to the code prompts.

If it cannot be reset or still stops after reset, the manufacturer or professional maintenance personnel should be contacted.

11. How to deal with the oil leakage from the aerator?

Oil leakage is more common in the aging of the gearbox or seal. First, check whether the oil seal of the gearbox is damaged, replace it with a new oil seal, and replenish the lubricating oil of the specified model. Second, check whether the sealing gasket is damaged, and reapply the sealant or replace the gasket.

If the motor bearing leaks oil, it may be too much grease or the oil seal fails. Refill the appropriate amount of grease after cleaning. In addition, check whether the YouTube or connector is loose and tighten it.

Oil spills not only pollute water bodies, but also lead to insufficient lubrication, which should be dealt with as soon as possible.

12. How to check if the aerator stops suddenly during operation?

Sudden stop may be caused by power failure, fuse blowing, motor burning or mechanical jamming. First, check whether the power supply is normal, then check the fuse and circuit breaker. Second, check whether the motor has burnt smell and measure the winding resistance.

If the machine is stuck, such as the impeller is stuck by foreign objects, it is necessary to clean and check the transmission parts. In addition, the action of the thermal protector will also cause shutdown and reset after cooling.

If you can't solve it yourself, it is recommended to contact a professional for maintenance.