Technical supports

User Guide and Frequently Asked Questions.

Technical supports

Technical support

Receiving General Information

For any inquiries about the product, scheduling maintenance, servicing, or repairs, please contact the hotline below and follow the instructions.

We are pleased to serve you!

1900 636 503
Technical Support Hotline

If you need to understand the cause of the malfunction and have a repair request, please contact the hotline below and follow the instructions.

We are delighted to serve you!

028 7306 1988
Remote Technical Support

To ensure minimal disruption to your usage experience, please choose remote technical support for easy resolution of any issues during product usage. Let us know about your requirements?

Call the hotline below for assistance.

0208 7306 5688

The horizontal centrifugal water pump operates normally but no water flows out.

– Cause:

The main cause of this issue is the lack of water supply at the suction inlet, water loss, or depleted water source. In this situation, it is advisable not to let the pump run for an extended period. Running the pump without water can lead to pump burnout. Additionally, a centrifugal pump running without water flow may be due to a poorly closed check valve or a blockage in the water pipe.

– Remedial Measures: 

The best solution for the above situation is to check the water source, eliminate any remaining air inside the pump chamber, and prime the pump with water again. If the delivery pipe is blocked or broken, check and replace the water pipe with the corresponding diameter.


3 common issues with pressure booster pumps? (troubleshooting)

Pressure Booster Pump is commonly used to increase water pipe pressure. However, when using this type of pump, users often encounter unintended issues such as noisy operation, loud noises from the pressure booster pump, failure of automatic shutdown, or the pump operating while water pressure remains low.…

And now, let’s go through the most common issues of the pressure booster pump, as well as how to troubleshoot these problems.

  1. The pressure booster pump makes loud noises.

This is a quite common issue, and there are various reasons for this situation, such as:

Insufficient water supply to the pump, often interrupted or unstable water source.

Some devices or water valves in the house are not tightly closed, leading to water leakage.

The automatic power cutoff relay is not adjusted according to the family’s water usage needs.

After prolonged use, the electrical relay may become damaged, not functioning properly like a new relay, and the electrical contacts may not touch each other when the pump stops, causing electrical sparks.

The water pressure generated by the pressure booster pump is much lower than the feedback pressure from water-using devices (sink, shower, washing machine, etc…)

Troubleshooting for the loud noise of the pressure booster pump

Depending on the specific cause, you can apply corresponding troubleshooting methods:

Check if the water pipe connecting from the storage tank to the pump is blocked or if the water pipe size and the pump nozzle size are synchronized.

When installing the pressure booster pump, it is recommended to place the pump at least 2 meters away from the storage tank to ensure a sufficient water supply to the pump.

Securely lock all water valves after use to prevent water leakage, and replace them if the valves are damaged, causing water leakage.

Adjust the electrical relay; you can find the adjustment method at the end of the article.

Replace the electrical relay if you find that the two contact points do not touch each other during the check or if the pump has been in use for many years.

Review the design of the water pipes used in the house. If the pipes are larger than the pump nozzle size, it can cause pressure drop issues.

  1. The issue of the pressure booster pump running continuously without shutting off

This is a quite serious issue with the pressure booster pump, as it can quickly lead to pump damage, increased electricity costs, and wastage. There are various reasons for this continuous running issue:

Water pressure leakage due to water pipes being broken or leaking somewhere. Points of leakage may need to be checked, including water shut-off valves, connections to water tanks, water pipes, etc., especially concealed pipes in the wall.

Devices that use water through the pressure booster pump are damaged or leaking, causing continuous water discharge from those devices (such as faucets, toilets, water tanks).

A faulty seal causing water leakage in the pressure chamber.

Incorrect adjustment of the pressure pump relay.

The check valve in the pump is open or damaged due to prolonged use or electrical failure.

Electronic control board malfunction in the pressure booster pump.

Troubleshooting for the pressure booster pump running continuously without shutting off

To address this issue, first shut off all devices using water through the pressure booster pump, then inspect each device and water pipe to find leaks and fix them. 

Typically, the water leakage must be significant enough to cause substantial water pressure loss for the pressure booster pump to run continuously without stopping. Therefore, it is usually relatively easy to locate the position of the rupture or leakage.

Pay attention to the water pipes in the technical box, as these pipes are hidden behind the technical box and are easily overlooked.

Check the suction mouth of the pressure booster pump for a one-way rubber valve. It is often prone to opening and needs checking and replacement. Alternatively, install an additional check valve for the pump at the suction line to prevent reverse water flow.

Inspect the pump, and if water leakage is detected due to a faulty seal, replace the seal. 

To minimize these issues with pressure booster pumps, it is advisable to choose and install pumps from reputable brands. Additionally, seek distributors with established market credibility. Hùng Việt Phát, the provider of genuine APP water pumps (Taiwan), is honored to accompany you.

For product consultation, contact: 1900 636 503.


Causes leading to issues with swimming pool pump malfunctions?

Poor pump quality

In today’s market, flooded with various products at different price points and unknown origins, there are many cheap, outdated pumps made from materials that are not suitable for harsh environments. Using low-quality pumps can lead to inefficient pool filter system operation, resulting in increased operating and repair costs. Therefore, you can choose Hùng Việt Phát, a long-established company specializing in providing genuine APP water pumps (Taiwan) with a high reputation in the Vietnamese market.

Incorrect pump capacity usage

There are many factors that can damage the pump motor, and most issues stem from inconsistent operational capacity. For example, using a high-capacity pump for a small pool or vice versa may cause problems. Especially, the pool water pump needs to have the appropriate capacity for the water flow of the pool sand filter.

Dry or overheated pump

If the pump is dry or clogged with dirt, it may exhibit signs such as overheating, distorted pump seals, and water leaking from the bottom center. Excess chlorine in pool water sucked into the electric motor can increase mechanical friction, cause the coil to melt, increase current intensity, and ultimately reduce performance.

Proximity to chlorine storage

If chlorine or pool treatment chemicals and your pump are placed in the same room, it is almost certain to lead to pump malfunctions. Chlorine gas with a small amount can rapidly corrode metal surfaces.

Dirty filter

When the pool filter is too dirty, the pump will struggle to push water through the system. What is the operating pressure of your system? How often are the filter tanks cleaned? You need to answer these questions and avoid letting a dirty filter affect the pump and the entire system. Therefore, regularly check and clean the pump’s debris filter to ensure the equipment’s operation.

Electrical issues

Electrical issues are also a common cause, often encountered when the pump malfunctions: the pump motor is prone to damage if it runs at too high a voltage. Over time, excessively hot conductors can lead to damage; improperly sized or insecurely connected conductors can cause pressure drops.

Lack of pump protection

Pool pumps can be installed outdoors or in overly enclosed spaces without ventilation, in extremely hot weather conditions. Prolonged high ambient temperatures can also be a cause of pump malfunctions. You need to protect your pump by installing it in a machine room or providing a shelter with ventilation support.

Water pipe leaks

Imagine if your water pipes are leaking; it will be challenging to draw water when there is a constant hole. Most modern pumps are self-priming centrifugal pumps; they can suck air out of the water pipe system and return to the pool. However, if your pump constantly draws air, it will need to work harder and experience more water disturbances than usual.


Common Issues

Useful Tips and Tricks

Một số lưu ý khi lắp đặt máy bơm dân dụng.

– To have a strong and continuous water source and prolong the life of the pump, we should note the following points: strong water source, the water pipe into the pump is usually 34 mm, and the outlet has a diameter of 27 mm. mm.

– For wells with a depth of no more than 9 meters, in weak or non-flowing water pipes and pumps to high tanks: use high-rise vacuum and push pumps. Depending on the height of your home, you can choose to buy a machine that suits your needs, achieving the highest results so that the height of the pressure head matches the capacity of the machine, avoiding waste. charge or overload when using the pump. Some suggestions for use in private homes:

+ For 1-2 story houses, you should use machines with a capacity of 125w.

+ For 2-3 story houses, you should use machines with a capacity of 200w.

+ For 3-4-5-story houses, you should use machines with a capacity of 250w.

– Use an automatic water pump to increase pressure: Suitable for families that need to use it without an overhead water tank, or the height is not enough to create pressure. The machine will automatically suck water from the tank and pipes and pump it directly into the device. Depending on your actual needs, you need to use more or less and choose the appropriate capacity. For private or collective buildings, especially hotels, it is also necessary to use a booster for the top floor of the building when experiencing low pressure.

– For deep wells, use a centrifugal pump. You must prime the water before use and install a one-way valve in the pipeline. If there is no water, the machine will roar, leading to damaged seals and burning out the pump motor.

– You should install a water filter at the inlet to filter sandy soil that can lead to jamming of the water pump impeller.

– When pumping from a very weak local water source, it is also necessary to prime the water before starting and install a one-way valve like a deep well submersible pump. Without water, the seal will be damaged due to overheating and cause water to flow back into the machine, causing a fire.

– You should install an additional water tank of about 400 liters or more (depending on need) placed high above to stabilize water pressure in the house and in case of water outages.

Above we have guided you to learn how to install residential water supply pumps. If you have a need for water pump equipment or encounter problems during use, please contact us immediately. .

Hotline: 1900 636 503

How to install a submersible wastewater pump

In installing shallow-placed SEWAGE PUMPS, not only wastewater pumps but all types of shallow-placed water pumps in general, the closer they are installed to the water source, the better. The machine should be firmly fixed to prevent strong vibrations during operation.

When installing the inlet and outlet water pipes of the machine, the water pipes must be straight, with rubles at each end. You must choose a pipe pump with the size that best matches the pump’s inlet and outlet. Pipelines must always be tightly sealed because leaks can damage the pump. In addition, you should install a filter screen to filter out unnecessary things during the liquid pumping process.

– Many types of wastewater pumps must be primed for use, so during installation the priming system must be installed properly.

– At the pump output, a stop valve should usually be installed. This will be more convenient for repairing or adjusting the pump.

– Must install the correct voltage of the pump and in addition, there should be an additional circuit breaker to limit damage when unwanted incidents occur.

– For tanks with fabric fibers mixed in, you can  use a self-priming shallow pump to be able to absorb water most effectively. In addition, depending on the depth of the tank, choose a submersible wastewater pump with appropriate capacity to use.

Above we have guided you to learn how to install a submersible wastewater pump. If you have a need for water pump equipment or encounter problems during use, please contact us immediately.

Hotline: 1900 636 503

How to choose a good inverter pump system

Currently, the supply from the clean water system is weak and unstable, especially in large cities with high demand and high population density, which will affect household water needs. , the need for a booster pump is extremely necessary and nowadays almost every family has a booster pump to improve water pressure for household appliances such as water supply at toilets and washing machines. , water purifier or water at the sink… However, conventional mechanical booster pumps will make loud noise and have unstable operating efficiency, so manufacturers have launched the line of BOOSTER PUMPS. INVERTER some lines integrate an additional pressure tank to support more convenience, intelligence in being able to easily customize flow and pressure as well as more flexibility and durability than conventional booster pumps. .

What is an inverter booster pump?

Inverter booster pump is a line of booster pumps that integrate an inverter (an inverter is a device that has the function of adjusting the frequency of the current of the coil inside the motor, thereby easily changing the motor speed). easily without using mechanical gearboxes like conventional mechanical booster pumps. In addition, there are many other functions such as soft start, braking, reversing, and intelligent control.)

Working principle of inverter booster pump

The INVERTER PRESSURE BOOST PUMP system operates based on the closed-loop control principle, the water supply signal will be sent to the processor, then compared with the water pressure according to the correct settings, then the inverter system will adjust the engine speed and automatically adjust the pressure and water flow according to installation requirements.

Advantages of inverter booster pump system

Inverter booster pumps will be a trend in the near future, a modern smart device with many advantages over conventional booster pumps such as::

  • Energy saving
  • Low noise
  • Good stability and more durable
  • Operational control is easier and more flexible with more applications
  • Better safety

Disadvantages of inverter booster pump system

Inverter booster pump lines all integrate more modern smart inverter devices, so the main disadvantage of this model is that the price of inverter booster pumps will be higher than conventional booster pumps. But with a better level, many customers still prefer to choose inverter booster pumps because they are better and smarter, have fewer problems, and lower noise levels are less annoying.

Application of inverter booster pump system

The inverter booster pump system is now too familiar and has a variety of applications, with many other functions such as soft start, braking, reversing, and intelligent control of the widely used inverter booster pump. Production and life applications such as installation in high-rise buildings, townhouses, apartments, hospitals, schools, supermarkets, pressurized pump systems, in the refrigeration industry, air compression industry, technology beer, wine, milk production, paper industry, plastic industry,…

Above we have guided you to learn about how to choose the best inverter booster pump system. If you have a need for WATER PUMP equipment or encounter problems during use, please contact us immediately.

Hotline: 0943500600

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