Yes, that can happen. Make sure the system isn't directly against the cabinet wall – leave some space to avoid resonance. It also helps to place some soft rubber feet under the device. This significantly reduces vibrations and noise.

Please check that the filter is properly tightened. An incomplete seal may prevent the sensor from resetting.

A: After changing the filters, you need to reset the filter life. Here's how:

1. Press and hold the "Reset" button for 3 seconds. A buzzer will sound, and you can then select the filter you wish to reset.
2. Press the "Reset" button to switch between filters. The indicator for the selected filter will flash.
3. After selecting the filter, press and hold the "Reset" button again for 3 seconds. You will hear a beep. The indicator for the selected filter will change back to blue – this means the filter has been successfully reset. If you do not operate the device within 10 seconds, the mode will automatically exit and the normal display will resume.

Please check the following:

1. Make sure that all hoses are fully inserted into the connectors until they audibly click into place.
2. Check that the filter housings are tightened properly.
3. Locate the exact leak point – connection, filter housing, or hose itself. If possible, make a short video and contact us. We will help you solve the problem.

This is normal and the water is safe to drink.

The pump pressurizes both water and air, causing the air molecules to shrink and increase their solubility. The air remains dissolved under pressure in the RO system. When you open the tap, the pressure is released, and bubbles appear. The water may look cloudy or whitish, but these are just air bubbles. Let it stand briefly—all the bubbles will disappear, and the water is perfectly safe to drink.

A slightly higher TDS value at startup is normal and drops back to normal after about 1 minute.

This is due to permeation – a natural phenomenon in all RO systems (both with and without a tank). When the system is running, the pressure forces water through the RO membrane, removing impurities. When the system stops, the pressure drops, and due to concentration differences, small amounts of ions can pass into the purified water, leading to a slight increase in TDS.

Even with this initial increase, the water quality is still far better than with any other filtration method (activated carbon, KDF, ceramic, UF, UV, etc.). The water is ready to drink immediately – no waiting required. No harmful substances are released.

This indicates prolonged operation. If the system produces water continuously for 30 minutes, it switches to protection mode – all components stop working and the lights flash red.

Should this happen, simply unplug the power cord for 10 seconds and then plug it back in.

Please follow these guidelines:

1. If the system will not be used for more than 2 days, let the filtered water run for at least 5 minutes before use.
2. If not used for more than 1 week: Close the filter cartridge and store it in the refrigerator (do not freeze). Before the next use, let the filtered water run for at least 10 minutes.
3. For longer storage: Turn off the water supply, unplug the power cord and open the tap to release the internal pressure – this protects the system from damage.

Please check the system for leaks. If no leak is found, the high-pressure switch may be faulty and need to be replaced.

Our tankless reverse osmosis (RO) system features an automatic flushing function. This is activated when:

1. Flushing on startup: After being switched on, the system automatically flushes for 30 seconds.
2. Flushing after 10 minutes of cumulative water production: When the cumulative water production reaches 10 minutes, the system automatically flushes for 10 seconds after switching to standby mode.
3. Flushing during continuous water production: If the system produces water continuously for 10 minutes, it will automatically flush for 15 seconds.
4. Flushing in standby mode: In standby mode, the system automatically flushes for 18 seconds every 6 hours.

The system features a filter life indicator (for the first and second stages only). Different colors indicate the remaining lifespan:

1. A solid blue indicator means the filter is working normally.
2. Flashing red indicator: The filter lifespan is about to expire (remaining lifespan < 5%).
3. Permanent red indicator: The filter has expired.

The recommended replacement interval for the ASR211 is one year or a cumulative water production of 60 hours (approximately 900–1000 gallons). The ASR212-600G is two years or 120 hours (approximately 1800–2000 gallons). The TAM3 is at approximately 900–1000 gallons.

This is because the TAM filter (the post-filter) adds minerals to the water. Normally, the TAM increases the TDS value by 10–70 ppm. If the system hasn't been used for a long time, the TAM enriches the water with even more minerals – then the water is very good and the pH value is above 9.

The TDS value is only displayed during initial setup after the system has produced water for one minute. While the system is running, the TDS sensor inside the device tests the water quality every minute. Therefore, if you have just restarted the system, you must wait approximately one minute for the TDS value to appear.

To avoid resonance noise and achieve the best filtration performance, we recommend placing the system vertically. However, since the water cycle board is integrated into the system, you can also lay it down if space is limited. As long as it doesn't leak and doesn't make any disturbing noises, you can use it without any problems.

Please note that the filter life indicator is calculated based on pump operating time. Therefore, if you use the system infrequently, the indicator will not change color. We recommend changing the filter according to the recommended interval.