Samsung Dishwasher Error Code 1E — How to Fix (Water level sensor malfunction)

Field note: 1E is a no-fill / slow-fill complaint. The first test is household water, not a valve coil. On Samsung Dishwashers: fully open both taps, unkink the hoses, clean the inlet screens. A clogged screen or a saddle valve that cannot keep up trips this before the inlet valve itself fails.

What this code is not

• Not a drain-pump failure.
• Not solved by a new dispenser if both inlet screens are packed with mineral grit.
• If the house supply is weak, the valve is innocent.

What Causes This Error

• Blockages in the sensor or surrounding area, such as food debris or detergent residue
• Faulty sensor wiring, including damaged or corroded wires
• Malfunctioning water level sensor, which can be caused by wear and tear or manufacturing defects
• Electrical connection issues, such as loose or corroded connections
• Software glitches or firmware issues, which can be resolved by updating the dishwasher’s software

Before You Start

It’s essential to address the Samsung Dishwasher error code 1E promptly to prevent further damage to the dishwasher and ensure proper cleaning of dishes. If the repair requires accessing internal wiring, or if the error code persists after trying the above steps, you should call a professional appliance technician. For warranty information, you can contact Samsung’s customer support at 1-800-SAMSUNG (1-800-726-7864). The cost of replacing a water level sensor can range from $50 to $200, depending on the model and brand. To prevent this error from occurring in the future, regular maintenance, such as cleaning the sensor and checking the wiring, can help extend the lifespan of the dishwasher. Remember to always follow safety precautions when working with electrical appliances and water to avoid any risks.

Common Causes of Error 1E

• Faulty sensor element – The metal sensor can break or corrode, especially if the dishwasher is used in hard‑water areas.
• Wiring corrosion or loose connections – The small wires that carry the sensor’s signal can rust or disconnect, giving the control board a bad reading.
• Water leak or excess moisture – A leak in the tub or a clogged drain can flood the sensor area, shorting the sensor.
• Electrical noise or power surge – A sudden spike in the household voltage can damage the sensor’s electronics.
• Physical impact – Dropping a heavy object on the dishwasher can bend or crack the sensor housing.
• Age and wear – After several years of use, the sensor’s internal parts can wear out and lose sensitivity.

How to Prevent Error 1E

1. Keep the tub dry – After each wash, open the door for a few minutes to let moisture evaporate.
2. Inspect the drain – Clean the filter and drain hose every month to avoid clogs that can cause water backup.
3. Use a water softener – Hard water accelerates corrosion on the sensor and wiring; a softener can reduce mineral buildup.
4. Check the door seal – A tight seal prevents leaks that could reach the sensor area. Replace the gasket every 18–24 months.
5. Avoid power surges – Use a surge protector on the outlet; this protects the control board and sensor from voltage spikes.

How Much Should You Pay?

The DIY cost covers just the sensor and any small tools you might need. If you’re comfortable with basic electrical work, you can save on labor. A professional will handle the wiring, testing, and ensure the repair is safe.

Related Samsung Dishwasher codes

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