Samsung Dishwasher Error Code 1E
Water inlet sensor failure
The most common cause of the 1E error on a Samsung dishwasher is inlet flow sensor failure (~55% of cases); start with: check water supply.
What Does Error Code 1E Mean on a Samsung Dishwasher?
Water inlet sensor failure.
The 1E code fires when the control board reads implausible signals from the water inlet flow sensor, which counts the volume entering during fill. If pulses fall below the expected threshold within the allotted fill time, the board flags a sensor failure rather than a simple no-water fault. This distinguishes it from supply-side leak or overfill codes like 5C: 1E points specifically at the flow sensor, its wiring, or genuinely reduced supply flow that keeps the sensor below its detection threshold.
What Causes Error Code 1E?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Inlet flow sensor failure 55% of cases
- 2 Water supply issue reducing flow below sensor threshold 30% of cases
- 3 Sensor connector loose 15% of cases
How to Fix Samsung Dishwasher Error Code 1E
- 1
Check water supply
Confirm supply valve open, hose not kinked.
- 2
Clean inlet screen
Remove and clean the inlet valve mesh screen.
- 3
Test flow sensor
Disconnect and check with multimeter.
🔩 Samsung dishwasher flow sensor ($25–$60) - 4
Replace inlet valve assembly
If sensor is integrated with the valve.
🔩 Samsung inlet valve ($35–$80)
How to Reset Error Code 1E
After fixing supply or replacing sensor, restart cycle.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
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When to Call a Professional
If supply is confirmed and sensor replaced but 1E persists, control board water detection failed.
Related Error Codes
Same Code on Other Brands
Error code 1E appears on these other brands too. See every brand that shows 1E →
Find Replacement Parts
Use these links to find the exact replacement parts for your Samsung Dishwasher:
External links — ApplianceErrors.com is not affiliated with these retailers.
More Samsung Dishwasher Error Codes
Frequently Asked Questions
Can I keep using my Samsung Dishwasher when error 1E appears? +
What most commonly causes 1E on a Samsung Dishwasher? +
1E keeps coming back after a reset — what should I check next? +
How much does it cost to fix Samsung Dishwasher error 1E? +
Which Samsung Dishwasher models show error 1E? +
Sources & References
- • Samsung Support — Error Codes — official manufacturer documentation
- • Our editorial & verification policy
Content verified against manufacturer service documentation. Last verified: June 10, 2026.