Between the water inlet hoses and the washing machine body sit small mesh filter screens — typically one per water inlet valve. These screens exist to catch sediment, rust particles, grit, and debris that travel through the household water supply before they can enter the machine’s internal components. In areas with older plumbing infrastructure or high sediment water supplies, these screens can clog within months. A blocked inlet filter restricts water flow into the machine, leading to extended fill times, error codes, incomplete wash cycles, and in some cases, damage to the inlet valve solenoid itself.
Locating the Filter Screens
On most front-loaders and top-loaders, the inlet filter screens are located inside the water inlet ports at the back of the machine — the threaded openings where the supply hoses connect. When you unscrew the hose fitting, the screen is visible as a small disc of fine wire mesh sitting in the inlet port opening. Some machines have a second screen inside the hose fitting itself at the other end. Check both locations.
What You Will Need
Step-by-Step Cleaning Procedure
Step 1 — Turn off the water supply. Close both supply valves at the wall fully. Even with valves closed, residual pressure in the hoses will release water when disconnected — place a towel or bowl beneath the connection point.
Step 2 — Disconnect the inlet hoses. Use pliers to loosen the hose fittings at the machine end (not the wall end unless necessary). Turn anti-clockwise. Have your bowl ready for the water that drains from the hose.
Step 3 — Extract the filter screens. Using needle-nose pliers or tweezers, carefully grip the rim of the mesh screen and pull it straight out of the inlet port. Do not deform or puncture the screen mesh — it is delicate. Some screens have a small plastic tab or collar that makes extraction easier.
Step 4 — Inspect the screens. Hold each screen up to a light source. Blockage is immediately visible — the mesh will appear grey or brown, and you may see visible particles embedded in it. Even partial blockage is worth clearing.
Step 5 — Clean the screens. Hold the screen under running water and use the toothbrush to gently brush both faces of the mesh. Brush in the direction of the mesh pattern, not against it, to avoid pushing debris deeper or distorting the mesh. For heavy mineral deposits, soak in white vinegar for 10–15 minutes before brushing.
Step 6 — Reinstall and reconnect. Press the clean screen back into the inlet port, ensuring it seats flat and flush. Reconnect the hose fittings and hand-tighten, then firm with pliers — do not overtighten, as this can crack the plastic housing. Turn the water supply back on slowly and check for leaks.
Frequency Recommendation
Clean inlet filter screens every 6–12 months for standard water supplies. For areas with high sediment or hard water — where limescale is a visible problem on taps and showerheads — clean every 3–6 months. If your machine begins showing extended fill times or water-supply error codes, check the screens as a first diagnostic step before calling a technician.