[Hongjie Water Service] Malfunctions and Maintenance Tips for Small Reverse Osmosis Pure Water Machines

High pressure pump does not stop:

1. The pressure of the high-pressure pump is insufficient to reach the set pressure for high pressure

2. The check valve is blocked and pure water cannot be discharged

3. High voltage failure, unable to jump

After the water is full, the machine jumps repeatedly:

1. Insufficient raw water pressure

2. Check valve pressure relief

3. High voltage switch or liquid level switch malfunction

4. There is a pressure relief phenomenon in the system

The high-pressure pump is working normally, but cannot produce water:

1. High pressure pump loss of pressure

2. The inlet solenoid valve has a malfunction and cannot be filled with water (there is no pure water or wastewater) (whether it is connected in reverse)

3. Pre filter clogged (with no or very little pure water or wastewater)

4. Check valve malfunction (with wastewater but not pure water)

5. The automatic flushing solenoid valve is malfunctioning and cannot be effectively closed (kept in flushing state)

6. The computer case has a malfunction and cannot close the backwash solenoid valve (it is always in the flushing state)

7. RO membrane blockage

Insufficient pure water flow rate:

1. Front filter clogged

2. Insufficient pressure of high-pressure pump

3. RO membrane blockage

4. The wastewater valve or wastewater proportioner is too conductive

5. Rear activated carbon blockage

6. Insufficient pressure or internal damage in the pressure bucket

The high-pressure pump does not start and cannot produce water:

1. Check if there is a power outage and if the plug is plugged in

2. Check if the low-voltage switch is malfunctioning and unable to connect to the power supply

3. Check if there is a short circuit between the water pump and transformer, or if the wiring of the entire machine is connected incorrectly

4. Check if the high-voltage switch or water level controller is malfunctioning and cannot be reset

5. Check if there is a malfunction in the computer case

The high-pressure pump stops, but the wastewater does not stop:

1. Electromagnetic valve malfunction, unable to effectively cut off water

2. The computer box has a malfunction and cannot close the solenoid valve (referring to microcomputer type)

3. Check valve pressure relief (low wastewater flow)

The pure water produced has a bad taste or an unpleasant odor, why?

1. Check the filtration efficiency of the RO membrane for any decrease or failure.

2. Check whether the pure water and wastewater ends of the RO membrane shell are separated or have cracks.

3. Check if one end of the RO membrane rubber ring is of appropriate size or damaged.

4. Check if the effect of post activated carbon is effective.

What is the reason why the daily water production cannot meet the requirements?

1. Check for calculation errors

2. Check if the water pump pressure is in place (0.6Mpa)

3. Check if the wastewater valve or wastewater proportioner is too conductive

4. Check if the water temperature is too low

What is the reason for water leakage near the pipeline interface?

1. Check if the PE pipe head is cut flat,

2. Check if the pipe plug is properly plugged,

3. Check if the nuts are tightened.

The pressure bucket is full of water, but pure water cannot flow out:

1. The pressure in the pressure bucket is released

2. Rear activated carbon blockage

What is the reason for abnormal noise during the operation of the water machine?

1. Check if the check valve is malfunctioning or aging

2. Check if there are any quality issues with the high-pressure pump

What is the reason why the machine is not working?

2. Check if there is a power outage and if the plug is securely inserted.

3. Check if the low-voltage switch wiring plug is loose or malfunctioning, which may cause the power contact to fail to return to its original position.

4. Check if the connecting wires of each wiring terminal are loose.

5. Check if the water pressure of the tap water is too low to prevent the low-pressure switch from working properly

Handling method:

Connect the detached plug;

Replace the low-voltage switch;

Install the loose connecting wire.

As for the cost of a set of reverse osmosis pure water machine, it depends on the customer's water production volume, what kind of configuration is required, and the price varies greatly.Hongjie Water has 10 years of experience in producing purified water treatment equipment, with rich production experience and a professional technical and after-sales service team. The equipment components are all from well-known brands, ensuring quality and after-sales support.