What to do if the water flow from an instant electric water faucet decreases?

With the fast pace of modern home life, instant electric water faucet have become essential appliances in kitchens and bathrooms due to their advantages of "instant hot water, saving time and electricity."

I. Core Problems: Scale Deposits and Filter Clogging

Instant electric water faucets work by instantly heating the flowing water through an internal high-power heating element. In areas with hard water, calcium carbonate easily precipitates at high temperatures, forming what we commonly call "scale."

Aerator Clogging: The aerator at the end of the faucet is the first line of defense against impurities. Sediment, rust, or fine scale from tap water often accumulates here, directly leading to reduced water pressure.

Scale Formation on the Internal Heating Element: Although modern instant electric water faucet often employ water-electricity isolation and anti-scale technology, a thin film of scale can still adhere to the surface of the heating element after prolonged and frequent use. This not only reduces water flow but also decreases thermal efficiency.

II. Quick Troubleshooting and Self-Help Solutions

If you find that the water flow from your instant electric water faucet is significantly reduced, you can try the following steps to restore it:

1. Clean the aerator at the end

This is the simplest and most effective method. Unscrew the filter screen (aerator) at the faucet outlet, soak it in white vinegar for about 10-20 minutes, and gently brush away any attached impurities and calcium deposits with an old toothbrush. After reinstalling, you should notice a significant increase in water flow.

2. Check the inlet filter screen

Most instant electric water faucets have a filter screen at the inlet. If your household water supply pipes are old, rust can easily clog this area. It is recommended to disconnect the power and water supply and then flush the inlet connection.

3. Deep descaling

For internal scale buildup, you can purchase a dedicated citric acid descaling agent. Dilute it according to the instructions, and use a circulation pump or gravity to allow the solution to flow through the inside of the faucet to dissolve the accumulated calcium.

III. How to Prevent Reduced Water Flow?

To extend the lifespan of your instant electric water faucet and maintain a stable water flow, the manufacturer recommends:

Install a pre-filter: Install a pre-filter at the water inlet throughout your home to intercept sediment and impurities at the source.

Avoid prolonged use at excessively high temperatures: Higher water temperatures accelerate scale buildup. It is recommended to keep the outlet water temperature between 45°C and 55°C, which meets daily washing needs while effectively slowing down scale formation.

Regular "cold water flushing": After each use of hot water, switch to the cold water setting and flush for a few seconds. This quickly reduces residual heat in the heating chamber, decreasing the likelihood of scale buildup in stagnant water at high temperatures.

A reduced water flow from your instant electric water faucet is not a terminal problem; in most cases, simple cleaning will restore it to its original condition. Choosing high-quality products from manufacturers with anti-scaling designs and developing good usage habits will ensure a long-lasting and comfortable instant hot water experience.

If you have tried the above methods and still cannot solve the problem, it is recommended to contact the after-sales service department of the instant electric water faucet so that professionals can check whether there is a water pump malfunction or damage to the internal pipes. Do not blindly disassemble the body yourself.