1E Water level sensor error
The Samsung 1E error code on your dishwasher indicates: Water level sensor error. This typically requires troubleshooting the water supply system.
What Causes This Error
Water supply valve turned off or low pressure
highThe household water supply to the appliance is restricted or completely off.
Water inlet valve failure
highThe electric solenoid valve that lets water into the appliance has failed or is clogged with sediment.
Kinked or blocked supply line
mediumThe water line running to the appliance is bent or blocked.
Water filter clogged
mediumA dirty filter is restricting water flow below the minimum threshold.
Float switch or pressure sensor fault
lowThe sensor that detects water level is stuck or malfunctioning.
How to Fix Error 1E
- 1
Check the water supply valve
Find the shut-off valve (usually under the sink or behind the appliance). Make sure it's fully open — turn it counterclockwise all the way.
- 2
Inspect the supply line
Follow the water line from the valve to the appliance. Look for kinks, pinches, or ice (for fridges). Straighten any bends.
- 3
Replace the water filter
If your appliance has a water filter, replace it. Filters should be changed every 6 months. A clogged filter restricts flow enough to trigger this error.
- 4
Check water pressure
The appliance typically needs at least 20 PSI. If other faucets in your home have low flow, the issue is your household water pressure, not the appliance.
- 5
Test the water inlet valve
With the appliance unplugged, disconnect the water line from the inlet valve. Turn the water on briefly into a bucket — if flow is strong, the valve itself may be bad. Test the valve solenoid for continuity (should read 200-1500 ohms).
Have towels ready — water will flow when you disconnect the line. - 6
Replace the inlet valve
If the valve tests bad or is visibly clogged with mineral deposits, replace it. They're typically held by 2 screws and one wire connector.
Replacement Parts
If the steps above don't fix it, you may need one of these parts:
Water Inlet Valve
$20-$55Float Switch
$10-$30Supply Line Hose
$10-$20When to Call a Professional
If household water pressure is the issue, or if the inlet valve location is difficult to access on your model
- Low household water pressure may require a plumber
- Some inlet valves are buried deep in the appliance frame
- Persistent water supply issues can indicate frozen lines inside walls