No. LSA4RM is designed for countertop use and does not require a water-line connection. Place it on a flat, stable surface near a dedicated 120V outlet and follow the startup procedure.

Rinse the feedwater tank and purified-water pitcher, fill the tank to the MAX line, and install the tank, cover, and pitcher securely. After power-on, the system automatically performs a 2-minute filter flush. Then allow the pitcher to fill and drain it completely 3 times. The full startup process takes about 30 minutes. Before drinking chilled water for the first time, dispense and discard 32 oz of chilled water.

Use municipal tap water, or water that is microbiologically safe and adequately disinfected. The specified feedwater temperature range is 41-100°F (5-38°C).

TDS stands for Total Dissolved Solids. The displayed value helps you observe changes in purified-water quality. It is a reference reading rather than a laboratory-grade measurement, so small variations are normal.

Some water remains because reverse osmosis separates dissolved substances from the source water. Do not continuously top off old residual water. When prompted to refresh the feedwater, or if the water has been sitting for more than 24 hours, discard the remaining water, rinse the tank, and refill it with fresh tap water.

Cold mode is designed for approximately 43-52°F (6-11°C). During initial setup, allow up to 45 minutes for the water to chill. If the COLD icon flashes three times and the unit beeps twice, chilled water is not yet ready or the cooling function is turned off. Make sure the pitcher contains sufficient purified water.

The cold-water tank needs time to cool newly supplied purified water after a larger amount has been dispensed. Allow the cooling system to recover before dispensing additional chilled water.

Select the desired hot-water setting and unlock the child lock before dispensing water at 110°F or above. Keep hands away from the outlet. After switching from hot water to cold or warm water, flush with cold water for about 10 seconds before drinking to clear residual hot water. At the 198°F setting, the actual outlet temperature is approximately 193-195°F due to heat loss during dispensing.

Replace the filter approximately every 12 months, or earlier when the filter-life indicator requires it. Actual filter life depends on water quality and usage. On LSA4RM, a solid filter indicator means the filter life has expired; a flashing filter indicator means a filter flush is in progress.

Install the new filter securely, reset the filter-life counter, and complete the required filter flush before drinking the water. Do not drink flushed or drained water.

If the purifier will be unused for 5 days or more, disconnect the power, fully drain the feedwater tank and applicable internal tanks, remove the filter, wrap it securely in food wrap, and store it in the refrigerator. Do not freeze the filter. Flush the system after reinstalling the filter.

Check that the feedwater tank contains water, all tanks and covers are correctly installed, and the filter is not clogged or expired. During startup or when the purified-water supply is low, the unit may temporarily pause dispensing while it produces more purified water.

Confirm that the required startup or post-replacement flushing procedure was completed. If the filter has reached the end of its service life, replace it and flush the new filter before use. If unusual taste or odor remains after proper flushing, stop drinking the water and contact Leysern Customer Support.

Stop using and unplug the purifier. Check that removable components are correctly aligned and securely installed. If the leak appears to come from inside the unit, or the purifier continues producing water abnormally or overfills, contact Leysern Customer Support. Do not disassemble the unit yourself.

If an error code appears on your LSA4RM display, use the table below to identify the issue and the recommended action.

Display priority: E6 > E02 > E01 > E0L > E0b

No. LSA4RC is designed for countertop use and does not require a water-line connection. Place it on a flat, stable surface near a dedicated 120V outlet and follow the startup procedure.

Rinse the feedwater tank and purified-water pitcher, fill the tank to the MAX line, and install the tank, cover, and pitcher securely. After power-on, the system automatically performs a 2-minute filter flush. Then allow the pitcher to fill and drain it completely 3 times. The full startup process takes about 30 minutes. Before drinking chilled water for the first time, dispense and discard 32 oz of chilled water.

Use municipal tap water, or water that is microbiologically safe and adequately disinfected. The specified feedwater temperature range is 41-100°F (5-38°C).

TDS stands for Total Dissolved Solids. The displayed value helps you observe changes in purified-water quality. It is a reference reading rather than a laboratory-grade measurement, so small variations are normal.

Some water remains because reverse osmosis separates dissolved substances from the source water. Do not continuously top off old residual water. When prompted to refresh the feedwater, or if the water has been sitting for more than 24 hours, discard the remaining water, rinse the tank, and refill it with fresh tap water.

Cold mode is designed for approximately 43-52°F (6-11°C). During initial setup, allow up to 45 minutes for the water to chill. If the COLD icon flashes three times and the unit beeps twice, chilled water is not yet ready or the cooling function is turned off. Make sure the pitcher contains sufficient purified water.

The cold-water tank needs time to cool newly supplied purified water after a larger amount has been dispensed. Allow the cooling system to recover before dispensing additional chilled water.

Replace the filter approximately every 12 months, or earlier when the filter-life indicator requires it. Actual filter life depends on water quality and usage. On LSA4RC, a solid filter indicator means the filter life has expired; a flashing filter indicator means a filter flush is in progress.

Install the new filter securely, reset the filter-life counter, and complete the required filter flush before drinking the water. Do not drink flushed or drained water.

If the purifier will be unused for 5 days or more, disconnect the power supply, fully drain the feedwater tank and the internal purified-water tank, remove the filter, wrap it securely in food wrap, and place it in the refrigerator. Do not freeze the filter. Flush the system after reinstalling the filter.

E1 indicates that the purified-water tank is low on water. First unplug the purifier, wait briefly, and reconnect power. If the issue remains on a new unit, the filter may not be fully installed or air may be trapped in the filter. With the power disconnected, reinstall the filter and press the valve stem at the top of the filter for about 10 seconds to release trapped air. On an older unit, replace the filter if clogging or mineral buildup is suspected. If E1 remains, contact Leysern Customer Support.

If the purifier or filter has been left unused for an extended period, especially in a warm environment, an unusual odor may develop. Stop drinking the water and complete the required cleaning and flushing procedure. Follow the long-term non-use storage instructions for the filter before future extended periods of non-use.

Unplug the purifier and stop using it. Check accessible tank connections and sealing areas for visible cracks, deformation, scale, or debris. If the leak appears to come from inside the unit, the purified-water tank overfills, or the purifier continues producing water abnormally, contact Leysern Customer Support. Do not disassemble the purifier yourself.

If an error code appears on your LSA4RC display, use the table below to identify the issue and the recommended action.

Display priority: EU > E6 > E0L > E0b