What is the reason why the pump cannot rotate, and what is the reason why the pump does not sound an

The inside of the pump body is jammed.

The motor bearing of the water pump is often stuck, sometimes the stuck situation will be very serious, when it can not rotate, it will cause the fuse to fuse, resulting in the overload of the thermal relay and tripping, if it is just a little dry but the rotation is very slow, it may be caused by lack of oil or other reasons will not trip, but it will cause the pump to not pump normally. This situation is also very troublesome, this solution is to oil the bearing or disassemble and clean the inside to replace, although the water pump is a seal, but it does not rule out the possibility of air inlet water, once there is a stuck situation to clean or replace the new bearing.

The pump head runner and rotating rod trip.

There is also a reason is that the pump head runner and the rotating rod trip, the pump can be divided into two accessories, the pump head and the motor two accessories, the motor is to rotate and drive the pump head to rotate, if it is found that the motor vibrates and the pump head itself pumps water, it is likely to be caused by the tripping of the pump head runner and the rotating rod.

If the pump head encounters resistance in the pumping process, the linkage rod will be rubbed, and some parts have been smoothed out in the long run, and can not play the role of embedding or slotting.

The voltage is unstable in the absence of phase.

If the voltage of 380V has a lack of phase, it will cause the motor to hum and not start, and this state will cause the motor to burn out for a long time, it is recommended to use an ammeter or multimeter to measure the voltage or line current to check whether there is a lack of phase.

1. The rotor and stator of the motor are rusty and cannot be rotated. 2. The impeller and pump casing are rusty and cannot be rotated. 3. The motor bearing is damaged and cannot be rotated. Sincerely answer for you, give a good review, dear, thank you.

Damage to stator windings, bearing problems, damaged impellers, electrical phase loss, capacitance problems, clogged water inlets, air leakage. Generally these are the questions.

Check whether the crank can be rotated.

If you can't crank the car, remove the coupling, disc motor, and disc pump.

Pump can not disc 1The bearing is damaged, 2 mouth rings and the impeller are bitten, 3 there are debris in the impeller, and the pump needs to be opened for inspection.

The motor can not be disced and the motor bearing is damaged, it is recommended to contact the motor manufacturer.

The gap between the impeller and the clasp, or there is debris.

Hello, here is your answer to the reasons why the pump does not turn and does not sound according to your questions 1, the capacitor is damaged, and the motor cannot be started. 2. There is dirt in the pump chamber and the centrifugal impeller is stuck. 3. If the centrifugal water pump is not used for a long time, it will lead to the accumulation of dirt and block the mechanical seal.

4. The rolling bearings are damaged or the front and rear left and right rolling bearings are not the same 5. The centrifugal water pump is idling or in a closed state, and the centrifugal impeller melts due to high temperature. Tips, if the above problems are recommended to be repaired at a professional maintenance location, do not repair them yourself to avoid damage.

Hello dear! What is the reason why the pump does not sound and does not rotate 1) The pump motor does not sound and does not rotate, it is likely that the starting winding is damaged, and if the pump motor is damaged by the starting winding, the starting winding should be repaired. (2) It may be caused by a short circuit in the magnetic circuit due to the short circuit of the rotor of the motor and the stator wall bonded together due to vibration and other reasons, if it is due to this situation, it is necessary to contact the maintenance personnel for maintenance.

3) In the case that the water pump is not started, the AC voltage of the multimeter can be used to measure whether the voltage of the three-phase power supply at the input end of the contactor is normal. If the power supply is normal, you can use the multimeter ohm file to measure the resistance of the stator coil of the motor at the output end of the thermal relay. If a phase is measured to be open (disconnected), the next step of inspection is required.

4) Open the motor junction box cover, you can use a multimeter to measure the three-phase resistance at the motor binding post. In this way, it can be judged whether the wire is broken or the coil inside the motor is open. Hope it helps!

The problem that the wire-cut water pump does not run is generally broken wire protection.

1. Check the conductive block dao on the left side of the offline shelf

and molybdenum wire has not been in contact.

2. Check whether the lower broken wire protection switch and broken wire protection relay are broken. In these three places, the broken wire protection relay is in the power distribution cabinet of the machine tool

There are generally three such relays in the electrical cabinet, broken wire protection, cutting end shutdown and commutation. It's easier to judge. The relays in the commutation have a lot of wires on them, which is easy to eliminate.

Then look at the other two relays, the wiring on the bottom half is almost the same. The bottom layer is connected to the coil, and the upper layer is connected to a wire. Mainly look at the wiring on the upper half.

The wire is connected to the bottom layer and is cut off at the end of the machine. Attached to the top layer is broken wire protection.

The reasons why the pump is normally turned and cannot pump water are divided into the following types:

1.There is air in the water pump inlet pipe and the water pump body. The pump is not filled with enough water before starting, and sometimes it looks like the filled water has overflowed through the vent, but the air is completely discharged without turning the pump shaft, leaving a little air in the inlet pipe or pump body.

2.The pump speed is too low. Some users are driven by another motor due to the damage of the original motor, resulting in small flow, low head and even no water.

3.The suction lift of the water pump is too large. Some water sources are deeper, and some water sources are flatter on the periphery, and the allowable suction range of the pump is ignored, resulting in little or no water absorption. It is important to know the vacuum level that can be established at the suction port of the water pump.

There is a limit, the suction lift of an absolute vacuum is about 10 meters high in the water column, and it is impossible for a water pump to establish an absolute vacuum. Moreover, the vacuum is too large, which is easy to vaporize the water in the pump, which is not conducive to the work of the pump.

The reasons why the pump does not turn normally are as follows.

It is possible that the internal mechanism of the pump is faulty, or the water seal is leaking, or it is possible that the water inlet of the pump is stuck by a foreign object.

The pump will turn but cannot pump water 1. The pump is not filled with a certain amount of water before it is turned on; 2. The slope of the inlet pipe of the pump is insufficient, and there is no descending slope; 3. The packing of the water pump has been used for a long time, and it has been worn or loosened.

The water pump can not turn the water normally, it does not call out several situations, first, the pump is reversed, there is no head, the second mechanical wear such as impeller damage, first.

3. The impeller part and the main body of the pump are loose and not fixed. There are foreign objects at the fourth outlet and inlet. There are only four situations in which the pump does not turn the water.

If the pump rotates normally but does not get water, it may be that the water seal of the pump is broken, or the impeller is broken. Cannot generate enough pressure to pump the water out.

The water pump can rotate normally without water, and it is necessary to check whether the water pump is leaking, the water seal is invalid, and the suction pipe is leaking, which can lead to water inadequacy.

If the pump rotates normally, it does not get water, which means that the internal structure of the pump is broken, so the water cannot be pumped.

It may be caused by a lack of water in the pump, just add water to the pump.

The buzzing of the water pump and the motor does not rotate, first of all, you can judge from the "buzzing" sound whether the power supply is out of phase or the pump or the motor is stuck. The "hum" sound of the power supply is relatively loud and a little hoarse, accompanied by vibrations. If the pump or motor is stuck, the "buzz" sound is relatively small and brittle.

If you can't judge from the sound, in line with the principle of simple maintenance.

1.Without starting the pump, use a multimeter.

The AC voltage level measures whether the three-phase power supply at the input end of the contactor is normal. If the power supply is normal, then use the multimeter ohmic gear in the thermal relay.

The output measures the resistance of the stator coil of the motor. Suppose a phase is measured to be open. That is, if the line is disconnected, the next step of inspection will be carried out.

2.Open the motor junction box cover, or use a multimeter to measure the three-phase resistance on the motor binding post. In this way, it is judged whether the wire is broken or there is an open circuit in the internal coil of the motor.

3.When the above checks are normal, open the motor fan cover. Coiled the fan blades to see if the motor shaft can rotate. Do not rotate and further check whether the impeller of the pump is stuck and whether the motor is stuck.

After these steps, the inspection will generally find the fault point.

In this case, if it is a three-phase pump, it should be that the power supply is out of phase, or it is possible that the impeller is stuck, and it is possible to use a hand or a screwdriver.

Take a turn to see if the rotation is normal, if it is a single-phase water pump, it may also be stuck, and the other possibility is that the capacitor is broken. It is easy to find the cause of this kind of failure, manually turn the car, measure the power supply, and basically judge the problem.

1. The impeller is stuck: In this case, it is possible that it is stuck by foreign bodies, at this time, it is only necessary to remove the foreign matter on the circulating pump, and then add some lubricant.

2. Motor damage: Once such a situation occurs, then you can only replace a new motor.

3. Cavitation: Due to the large pipe resistance at the inlet of the circulating pump, it is very easy to produce cavitation, and the pump body will vibrate, and the inside of the pump body needs to be cleaned at this time.

To sum up, it is about how to deal with the circulating pump without turning, I believe that after reading the above content, the next time you encounter such a situation, you can also solve it according to the above methods.

Dismantle! Disassemble and clean the rotor shaft bearing. If the bearing is corroded, it must be replaced. The impeller and rotor shaft are cleaned with oil and sandpaper.

If the water pump has not been used for a long time, the first thing to check is whether the motor and circuit are normal. Then the pump should be dismantled to check the bearing, re-replace the butter, and take out the old stalk and replace it with a new stalk.

Then you can use your hand to move whether it is normal. At the same time, the gasket should be replaced to prevent air leakage.

That's because the rust is dead, you have to disassemble and remove the rust, or it may be that the line is aging for a long time, and then check and check the line.

After the pump is energized, there is only a hum but no turn fault analysis is as follows: if it is a single-phase pump motor, then the fault may be that the starting capacitor is broken, the contact is poor, or the starting winding is burned out If it is a three-phase water pump, the fault may be a lack of phase, low voltage, poor line contact, short circuit inside the winding, etc. So it is recommended to find a professional electrician or.

In this case, it is also possible that the motor is rusty, so you should check it carefully to see if it is due to the problem of the power supply or the rust caused by rust.

If the pump motor is not used for a long time, it is necessary to test whether the insulation of the pump is qualified, and if the insulation is unqualified, it must be rewound to the motor.

Pump rotation stoppage can be caused by a variety of reasons, here are some common reasons:

Power supply problems: Power fluctuations, voltage instability, or insufficient power supply can cause the pump to stop.

Pump overheating: Pump overheating can occur when the pump is running for a long time, the load is too large, or the heat dissipation is insufficient, which can cause the pump to automatically stop running to protect its internal components.

Pump blockage: There are debris blockages inside the pump or at the inlet and outlet, blocking the flow of water, causing the pump to run difficult and stop.

Internal failure of water pump: The internal parts of the water pump such as bearings, impellers, etc. are worn or damaged, which may lead to unstable operation of the water pump.

Water Leakage: Damage to pump seal parts, resulting in leaks that can make the pump run unstable and stop.

Control system failure: The control system of the pump fails, such as the failure of the pressure switch, protector, etc., which may cause the pump to stop.

To solve this problem, it is first necessary to determine the specific cause that caused the pump to stop. For different reasons, take corresponding measures, such as checking the power supply, cleaning blockages, replacing damaged parts, repairing water leaks, checking and repairing control systems, etc. If the problem is complex, it is recommended to contact a professional technician for diagnosis and repair.

1. Due to the long-term potential underwater, the water inlet pipe corrodes the hole in the pipe wall, and the water surface continues to decline after the pump works.

2. Cracks at the elbow of the inlet pipe, and a small gap at the connection between the inlet pipe and the pump, may cause air to enter the inlet pipe. This is the case when air enters the inlet pipes and pumps.

3. Improper installation of the royal finger. The center distance of the two pulleys is too small or the two shafts are not too parallel, and the transmission belt is tightly installed on it, resulting in the wrapping angle being too small, the calculation error of the diameter of the two pulleys and the eccentricity of the two shafts of the coupling drive is large.

4. Pump blockage means that the pump may have debris or solid particles in the sewage pumped, and these debris or particles will block the pump. At this point, the pump can be dismantled to clean or replace damaged parts.

There could be a variety of reasons that cause the pump to stop working after turning for a while, here are some possible reasons and how to fix it:

Power Issues: The water pump needs sufficient voltage and current to work properly. If the power supply is unstable or the wires are in poor contact, it may cause the water pump to stop working. The solution is to check whether the power supply is firmly connected, whether the wire is damaged or aged, and ensure that the power supply is stable.

Clogged water pump: If the inlet or outlet of the water pump is blocked, the water pump may stop working after a while. The solution is to clean the pump and pipes and make sure that the pump's filters and other parts are not damaged.

Pump damage: If the pump's motor or other flushing parts are damaged, it may cause the pump to stop working. The solution is to locate the damaged part and have it repaired or replaced.

Pipe pressure is too high or too low: If the pipe pressure is too high or too low, the pump may stop working. The solution is to check if the pipe pressure is normal and adjust the pipe valve or pump settings as needed.

Pump running for too long: If the pump works continuously for too long, it may cause overheating and stop working. The solution is to give the pump sufficient rest time and make sure that the pump can cool down properly.

If you're not sure how to fix the problem, it's best to contact a professional technician for inspection and repair.