Dishwasher
2E
The 2E error code on a Samsung dishwasher points to a problem with the water supply — specifically, the appliance isn’t detecting enough water entering the machine within the expected timeframe. It can feel alarming, but in many cases the fix is straightforward and something you can tackle yourself without calling an engineer. In this guide, we’ll walk you through exactly what’s causing the 2E error, a clear set of steps to try at home, and honest advice on when it’s time to bring in a professional.
What does this error mean?
The 2E error code on Samsung dishwashers (sometimes displayed as ‘2E’ or confused with ‘ZE’ on older display panels) is a water supply or water inlet error. It means the dishwasher has tried to fill with water but the internal sensor — usually a water level sensor or pressure switch — has not detected sufficient water entering the tub within the programmed fill time. Samsung’s control board monitors how long the inlet valve has been open. If the expected volume of water hasn’t registered after a set period, it throws the 2E fault and stops the cycle to prevent the machine running dry, which could damage the wash pump and heating element. In short: water should be flowing in freely, and something is interrupting or restricting that flow.
Est. repair cost
DIY fix (inlet filter clean, hose check): £0–£10. Replacement inlet valve (DIY part): £20–£45. Professional repair (call-out + labour + parts): £80–£160 depending on your region and the engineer’s rates.
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Reset the dishwasher first: Switch the machine off at the wall socket, wait a full 5 minutes, then switch it back on and run a short cycle. A temporary glitch in the control board can trigger a 2E error and a simple power reset often clears it at no cost.
Step 2 — Check the water supply tap is fully open: Locate the isolation tap on the cold water pipe feeding the dishwasher — it’s usually under the kitchen sink or behind the kick-plate. Turn it fully anticlockwise to ensure it’s completely open. If it feels stiff or stuck, do not force it; call a plumber.
Step 3 — Inspect the inlet hose for kinks or damage: Pull the dishwasher carefully forward (no tools needed for most freestanding models) and visually inspect the entire length of the inlet hose. Straighten any kinks gently by hand. Check the hose isn’t being crushed against a cabinet wall or the floor.
Step 4 — Clean the inlet filter/mesh screen: Turn off the water supply tap. Unscrew the inlet hose where it connects to the back of the dishwasher (have a towel and small bowl ready as residual water will drip out). You’ll see a small mesh filter inside the valve inlet — use a pair of needle-nose pliers or tweezers to carefully pull it out, then rinse it under the tap and use an old toothbrush to remove any limescale or grit. Refit the filter and hose securely and restore the water supply.
Step 5 — Check household water pressure: Turn on a cold tap elsewhere in your kitchen and observe the flow. If it seems weaker than usual, check with a neighbour to see if they’re experiencing the same issue. If pressure is low across your home, contact your water supplier (e.g. Thames Water, Severn Trent, Yorkshire Water) before continuing.
Step 6 — Run a hot descaling cycle: In hard water areas, limescale can build up inside the inlet valve and sensor chamber. Add a dishwasher descaler (such as Finish Dishwasher Cleaner or own-brand equivalents from Asda or Tesco — around £3–£5) to an empty machine and run the hottest cycle available. This can help clear partial blockages without dismantling anything.
Step 7 — Check the door is closing and latching fully: Some Samsung models will not begin filling if the door latch isn’t fully engaged, which can display as a supply-related error. Open and firmly close the door, making sure it clicks into place. If the door feels loose or the latch is broken, this is a straightforward part replacement (Samsung door latch assemblies typically cost £15–£30).
Step 8 — Test the inlet valve (experienced DIYers only): If you’re comfortable using a multimeter, you can test the solenoid inlet valve for continuity after disconnecting the dishwasher from the mains. A healthy solenoid typically reads between 500–1,500 ohms. A reading of zero (short circuit) or infinite resistance (open circuit) means the valve has failed and needs replacing. Samsung inlet valves for common UK models (e.g. DW60M, DW80 series) cost approximately £20–£45 online from retailers such as eSpares or BuySpares. If you are not confident working near electrical components, skip this step and call a professional.
Step 9 — If the error persists after all the above steps: Do not continue running cycles, as a dry-running pump can cause expensive secondary damage. Document what you’ve already tried and move on to calling a qualified appliance engineer.
📞 When to call a professional
Call a qualified appliance repair engineer if: the error code returns after completing all the steps above; the inlet valve tests as faulty on a multimeter; you suspect the water level sensor or pressure switch is at fault (these require internal access and are not safe DIY tasks); or the control board (PCB) may be damaged. When you call, tell the engineer: ‘My Samsung dishwasher is displaying a 2E error code. I’ve checked the water supply tap, inspected the inlet hose for kinks, cleaned the inlet mesh filter, and confirmed household water pressure is normal. The fault is persisting.’ This will save the engineer time and ensure they arrive with the most likely replacement parts. Look for engineers registered with the Domestic Appliance Service Association (DASA) or those who specifically list Samsung appliance repairs. Avoid engineers who charge a call-out fee that isn’t deducted from the repair cost.
⚖️ Repair or replace?
For a Samsung dishwasher showing a 2E error, the repair decision depends heavily on the age and model of your machine. If your dishwasher is under 5 years old, repair almost always makes financial sense — Samsung has good parts availability in the UK, and common components like inlet valves, sensors, and door latches are widely stocked. A professional repair for a 2E fault typically resolves in a single visit. If your machine is between 5–8 years old, weigh the repair cost against a replacement: a new mid-range Samsung dishwasher (e.g. the DW60M series) costs £350–£550 at UK retailers such as Currys or AO.com, while a repair should cost significantly less. If your dishwasher is over 8–10 years old and has had previous repairs, or if the fault turns out to be a failed PCB (control board replacement can cost £150–£250 in parts alone), replacement is often the more economical and reliable long-term choice. Samsung dishwashers generally receive solid reliability ratings from UK consumer organisations, so a well-maintained machine under 7 years old is well worth fixing.