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Check whether there is water in the pump, there must be a certain amount of water as a drain before the water can be pumped; 2. If the pressure of the pump is not enough, or the pipeline is not long enough, it will also lead to the inability to pump water, and it should be replaced in time; 3. There is a leakage in the household water pipe, which will cause the water pump to fail to work normally, and the water pipe needs to be replaced.
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If the pump motor is running properly. The water cannot be pumped, probably because there is no water diversion, that is, there is no water in the pump. This is a problem caused by a leaking foot valve.
If it's not serious, you can fill the pump with water first. Then turn on the pump.
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It depends on the actual situation, the working performance of the pump, (whether it is a submersible pump or an ordinary single-wheel pump, or a vacuum pump,) the working nature is different, the cause of the failure is different, if it is a vacuum pump or a single-wheel pump, pay attention to see if there is a problem with the sealing of the transmission part of the pump (air leakage), whether there is water at the outlet end (the water surface --—in the pump), if this section is empty, it will not suck water, if it is a submersible pump, it is a water level reduced or the impeller has a problem, mainly depending on the actual situation.
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First of all, check whether the line is out of power and whether the power supply is normal. Then listen to the pump to see if there is a sound, if there is proof that the pump is not broken, it may be caused by the water level is too low. If it is not alive, it is likely that the pump is burning and needs to be unplugged and sent for repair.
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If you can't pump water at home, it may be because your area is relatively high, or the people around you are using pumps.
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One is the power supply due to the wire, insurance, two motor is in good condition, and the third outlet is not blocked.
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What is the reason why a household pump can't pump water? If the pump can't pump water, is there no water? It's still not enough voltage, or the pump is burning, or there is a lack of phase electricity, or leakage, and it's ruled out one by one.
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Reasons why the pump can't pump water.
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Check if there is air in the pump body.
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What is the reason why a household pump can't pump water? How to deal with it? It should be that the motor is broken.
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1) The human factor. 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.
2) Mechanical failure of the pump itself. The impeller and the pump shaft fastening nut are loose or the pump shaft is deformed and bent, resulting in multiple impeller movements, direct friction with the pump body, or damage to the bearing, which may reduce the speed of the pump.
3) The power engine is not well maintained. The motor loses magnetism due to the burning of the winding, and the change of the number of winding turns, wire diameter, and wiring method during maintenance, or the failure is not completely eliminated during maintenance, will also change the speed of the pump.
4) The voltage is too low.
Some pumping stations do not have a separate transformer, but erect a low-voltage line from the existing transformer to supply power, the low-voltage line is longer, and the voltage drops greatly, resulting in low voltage, which leads to the decrease of motor speed and can not be used normally.
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1.The pump is not filled with enough water. Individual pump drivers do not fill the pump with enough diversion water before the pump starts, and sometimes it appears that water has overflowed from the vent hole, but the pump shaft is not rotated to completely exhaust the air, resulting in a little air remaining in the inlet pipe or pump body.
2.The level of the inlet pipe in contact with the pump is not enough to reduce the slope in the direction of the reverse flow, and the level of the inlet pipe in contact with the pump is more than the direction of the reverse flow. 3.
The reason for the packing of the water pump. The packing of the water pump has been worn out due to long-term use or the packing is too loose, resulting in a large amount of water from the packing and bushing. 4.
The inlet pipe is corroded. Due to long-term potential underwater water, holes appear in the inlet pipe wall corrosion.
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There are generally two that the pump can't pump water:
1.Air is present in the inlet pipe and pump body.
2.The centrifugal speed pump speed in the metering diaphragm pump is too low.
It is advisable to take the pump to a repair shop for inspection.
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What is the reason why a household pump can't pump water? I think there are many reasons like this, and it may be because the motor inside is damaged. It could also be due to poor contact with a certain area.
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If there is water in this case, it may be that the water pump is broken, you can go to the tunnel to repair the motor and let the master show you, so it will be good to repair it.
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Reason 1. The motor is broken.
No electricity. Two.
The water inlet pipe is not tightly sealed. Leakage. Three.
There is no water to pump. Please check the reasons one by one.
Try again after repair.
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The household pump can't pump water, it should be that there is a problem with his pump, the impeller does not rotate, or is there any other problem?
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You may have just started to pump water, then you should first fill a little water into the pump to exhaust the air inside, in this case, turn on the pump to pump water, just start, if there is air in it, it will not be able to pump water.
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1. There is air in the inlet pipe and pump body. It is possible to fill the pump with water.
2. The speed of the self-suction pump is too low. You need to find a professional to take a look.
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The reasons why the pump cannot pump water are as follows:
1. When the pump is started for the first time, the air in the pump needs to be discharged;
2. Check whether the inlet and outlet valves of the pump are opened, whether the inlet of the pump is sucked with water, whether there is any foreign body blockage in the inlet and outlet pipes of the pump, whether there is a shortage of water at the inlet of the water source of the pump, and if there is a shortage of water, replenishment can solve the problem;
3. For human reasons, some users have damaged the original motor of the pump, and they feel that it is okay to match a motor at will, resulting in a small flow rate of the pump, low head, and even the result that the pump does not use water;
4. After closing the pump valve, the pump pressure can not go up, disassemble the pump body, check whether the impeller in the pump body has the problem of falling off or damaged, if there is such a phenomenon, it is recommended to replace or repair it as soon as possible;
5. Check whether the pump has a reversal problem, sometimes the pump can not be on the water, adjust the pump steering problem can be solved, if the water is controlled by the inverter, it needs to be checked manually or automatically respectively;
6. Due to the burning or loss of magnetism of the motor winding of the water pump, the change of the number of winding turns, wire diameter and wiring method during the maintenance of the motor, or the change of the speed of the electric water pump due to the failure of the motor during maintenance, resulting in the sound of the water pump not being able to get water;
7. The resistance of water flow in and out of the pipeline is too large, and the pump pipeline is too long or there are many curves, resulting in too much resistance of the water flow pipe, although the vertical distance from the outlet to the water source is less than the rated head of the pump, but there will still be the problem that the pump can not lift water or water.
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Common reasons why household pumps don't run water include:
Insufficient water source: The water level of the water source is too low or the water quality is not good, which will affect the working effect of the pump. You need to make sure that the water is sufficient and the water is clean.
Air leakage: The pumping pipe is not tightly connected and the sealing is poor, resulting in the inability of the pumping pump to form a vacuum, which affects the inflow and outflow of water.
Bubble blockage: The presence of air bubbles in the pipeline will affect the normal operation of the pump, which needs to be solved by exhaust valves and check valves.
Fouling in the pump: The fouling in the pump will affect the working effect of the pump, reduce the water absorption capacity of the pump, and need to be cleaned and maintained.
Note: When checking that the pump is not watering, you need to cut off the power supply and wait for the pump to stop completely before checking to ensure safety. If the problem cannot be ruled out, it is best to have a professional technician service.
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Reasons and solutions for the pump not being able to pump water:
1. The impeller rotates unbalanced, the coupling is not tight enough, and the parts are loose and broken, etc., resulting in large vibration of the water pump. These problems can be solved by means of adjustments, reinforcements, repairs, or replacements.
2. The nut is installed at the time of installation.
If it is not tightened, the water pipe will leak and leak. This is a good solution, if it is a slight leak, it will be plugged with cement and asphalt oil in the leakage, and if the leakage is more serious, it must be replaced or reinstalled.
3. Because the packing pressure is too solid, the cold water cannot enter the inside of the packing, or the table of the shaft has been damaged. In this case, it is only necessary to loosen the packing and clean the clogged pipes.
4. The water in the pump is not full or there is air in the inlet pipeline. If this is the case, fill the water and pump the air out of the pipes.
Precautions for maintaining water pumps.
1. Once any accident occurs, the pump can not continue to work, even if it is a small accident. If the packing of the pump is worn out, it must be filled up in time, if it is continued to be used, it will lead to air leakage. This will affect the wear and tear of the motor and directly destroy the impeller.
2. If you find that vibration will occur when you use it, you should stop immediately to check the specific cause, and if you still use it in vibration, it will also cause damage.
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1. The packing is overheated, mostly because the packing is pressed too tightly, the cooling water cannot enter the packing, or the shaft surface is damaged. Measures such as appropriately relaxing the packing and cleaning up the sealing tube can be taken. Wear-out packing must be replaced with a new one.
Before installation, soak in the oil and fill it in one circle at a time, and the cuts should be staggered, so as to reduce water leakage.
2. The pump does not absorb water or does not drain water, and the reasons are mostly that the bottom valve is stuck, the water filter part is blocked, the water absorption height is too high or the water absorption is leaking, or it may also be due to the wrong steering, the impeller flow channel is blocked, etc. After passing the inspection one by one, measures can be taken to repair the foot valve, remove the blockage, correct the steering, and clean the impeller.
3. The water pump vibrates violently, and the electric rotor may be unbalanced, or the coupling is poorly combined, and the bearing is worn and bent; It may also be loose or cracked in some parts; Maybe it's because the tubing bracket is not strong, etc. It can be dealt with by means of adjustment, repair, reinforcement and replacement.
4. The pipeline is leaking water or air, and the nut may be installed.
Tightly tightened. If the leakage is not serious, cement or cement slurry mixed with asphalt oil can be applied to the area of air or water leakage. Temporary repairs can be made with wet mud or soft soap.
If there is a leak at the joint, you can tighten the nut by hand. If the water leakage is serious, it must be reassembled. After the last round of packing is loaded, the gland should be tightened, and the tightness should be adjusted during operation.
5. If there is any small fault of the pump, remember not to let it work. If the packing of the pump shaft should be added in time after wear, if the pump continues to be used, it will leak. The direct effect of this is increased energy consumption of the motor, which in turn can damage the impeller.
6. If there is a strong vibration in the process of using the pump, you must stop and check what the cause is, otherwise it will also cause damage to the pump.
7. When the bottom valve of the pump leaks, some people will fill the inlet pipe of the pump with dry soil and flush the bottom valve with water, which is really undesirable. Because when the dry soil is put into the water inlet pipe and the pump starts to work, the dry soil will enter the pump, which will damage the impeller and bearings of the water pump, which will shorten the service life of the water pump. When the foot valve leaks, it must be repaired, and if it is serious, it needs to be replaced with a new one.
8. After the pump is used, you must pay attention to maintenance, for example, when the pump is used up, the water in the pump should be cleaned, and it is best to remove the water pipe and rinse it with clean water.
9. The tape on the water pump should also be removed, and then rinsed with water and dried in a bright place, do not put the tape in a dark and damp place. The tape of the water pump must not be stained with oil, and do not apply some sticky things on the tape.
10. Carefully check whether there are cracks on the impeller, whether the impeller is fixed on the bearing or whether it is loose, if there are cracks and looseness, it should be repaired in time, and if there is soil on the impeller of the water pump, it should also be cleaned up.
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Household water pumps can pump water when it detects cracks, and sometimes it can't, which can be caused by a variety of reasons. Here are some suggestions to help you diagnose the problem:
Inspect the inlet pipes: Make sure the inlet pipes are not leaking, clogged, or broken. If air enters the pipes, the pump may not be able to pump water properly. Check and clean the filter to prevent clogging of the focil and affecting the water flow.
Check the water source: Make sure there is enough water, if the well water level drops, it may cause the pump to fail to pump water.
Check the seal of the pump: If the seal of the pump is damaged, it may cause air leakage inside the pump, which can affect the pumping effect. Check the seals of the pump and replace them if necessary.
Check the power supply and controller: Make sure the pump's power supply and controller are working properly. If the power supply is unstable or the controller fails, it may affect the operation of the pump.
Pump Internal Problems: The impeller, bearings, or other parts of the pump may be worn or damaged. These problems may affect the pump's pumping performance. Inspect the internal parts of the pump and replace them if necessary.
Automatic switch failure: If the household water pump is equipped with an automatic switch, check if the switch is working properly. If the switch is damaged, it may cause the pump to not start or shut down properly.
Check the check valve: Make sure the check valve inside the pump is working properly. If the check valve is damaged or blocked, it may cause air to enter the pump, which in turn can affect the pumping effect.
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What is the reason why a household pump can't pump water? How to deal with it?
There is air in the inlet pipe and the pump body, the pump speed is too low, the suction stroke of the pump is too large, and the water leakage at the pipeline interface will cause this phenomenon. If there is air in the inlet pipe and pump body, just drain the air directly. If the speed of the pump is too low and it is damaged, see if it is caused by motor damage, and if so, replace it with a new one.
If there is a leak at the pipe connection, just tighten the nut.
This self-priming pump in your home must be a double-pipe vacuum self-priming pump, first of all, the air in the pump and suction pipeline is not discharged when it is installed for the first time, so it will cause this phenomenon, you fill up the water in the pump body and pipeline to check whether the water level in the pump body has dropped, there will be a decline, indicating that the bottom valve of water absorption may have leakage. The foot valve is to be replaced.
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