Written by
Adrian Soto Appliance Repair Content SpecialistPublished October 20, 2026
Error code3E
ApplianceDishwasher
Quick answer
3E means the incoming water is too hot. Confirm the hot water supply is not set above 176 F.
Model compatibility: Samsung reuses codes across series and model years, so 3E may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
3E is a high temperature water supply error: the incoming water is too hot.
On US models, 3E is a high temperature water supply error. The water coming into the dishwasher is too hot.
What to check
Verify that the hot water supply is not set above 176°F. If it is not set that high but the error still occurs, request service.
Related dishwasher codes
3C covers the pump, and Samsung’s Australian listing groups 3C and 3E there. 4C is a water supply error about pressure or temperature.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
