Qi Qin equipment consumables replacement cycle (based on standard water quality and conventional usage): PP cotton filter cartridge 3-6 months; Activated carbon filter cartridge for 6-12 months; RO reverse osmosis membrane for 1-3 years (depending on the inlet water quality and water consumption); UV lamp tube 8000-10000 hours (approximately 1 year); EDI module 8-10 years; Terminal filter takes 1-3 months; Breather filter cartridge 3-6 months. The specific information shall be based on equipment alarms and actual monitoring data.

Common reasons for slower water intake flow rate: 1. Terminal 0.22 μ m filter blockage (recommended to replace every 1-3 months); 2. The internal pipeline of the water intake handle is blocked; 3. Insufficient water supply pressure in the system. You can first replace the terminal filter for testing. If the problem still persists, contact after-sales for further investigation.

This alarm is usually caused by the front end of the device: 1. Check if the inlet valve is fully open; 2. Check if the front PP cotton filter is clogged (due to increased pressure difference), and replace it if it is clogged; 3. Check if the inlet solenoid valve is working properly; If the equipment is equipped with a booster pump, check if the pump is running. You can replace the PP cotton filter element first (it is recommended to replace it every 3-6 months). If the problem persists, please contact after-sales service.

High TOC is commonly seen in: 1. When the lifespan of UV lamps expires (it is recommended to replace them after 8000-10000 hours); 2. Activated carbon filter cartridge adsorption saturation; 3. The TOC of the incoming water suddenly increases; 4. Biofilm grows in water tanks or pipelines. Suggested solution: Check the usage time of the UV lamp first, and replace it if it has expired; Simultaneously check the service life of activated carbon (6-12 months); If the problem still cannot be solved, engineers can be arranged to perform systematic chemical cleaning.

Sudden decrease in resistivity is usually caused by the following reasons: 1. Sudden change in inlet water quality (such as an increase in TDS); 2. RO membrane aging or damage (used for more than 2-3 years); 3. Abnormal operation of EDI module (check voltage and current); 4. Terminal filter blockage or expiration; 5. Bacteria grow inside the system. Suggest checking the data of each monitoring point first. If unable to make a judgment, you can contact after-sales remote diagnosis.