Samsung Dishwasher Error Code 3E: Meaning & How to Fix It

By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026

Samsung dishwasher error code 3E means: The incoming water is too hot. [1] Keep using it? Not until the cause is fixed. Start with the owner checks below, beginning with: check the water heater.

Quick facts

Code	3E
Also shown as	None listed by the manufacturer
Brand / appliance	Samsung dishwasher
System	Heating
Official meaning	The incoming water is too hot. [1]
Keep using it?	Not until the cause is fixed
DIY-safe?	Owner checks only (listed below)
Support	Samsung Support Center (samsung.com/us/support)

On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ

What error code 3E means on a Samsung dishwasher

The incoming water is too hot. [1]

This is a heating code. Codes and wording can vary by model, so check your owner's manual for your model number.

How to fix Samsung dishwasher error code 3E (safe owner checks)

Safety first: disconnect power before you remove any panel or reach into the sump or drum. Do not touch wiring, the control board or the motor. If you see water near electrical parts, stop and call a technician. These steps are based on Samsung's published guidance [1], rewritten for clarity.

Check the water heater. Make sure the hot water supply isn't set above 176 °F.

Parts that may be involved

Exact parts depend on your model number. This page lists part types only, never part numbers.

No specific part is implied by the manufacturer's guidance for this code.

When to call a technician

It's not, but the error continues
Anything involving wiring, the control board, the motor or the water valve electrics
The appliance is under warranty: contact Samsung Support Center (samsung.com/us/support) first

Frequently asked questions

What does error code 3E mean on a Samsung dishwasher?

Samsung lists 3E as follows: The incoming water is too hot.

Is it safe to keep using the dishwasher with 3E?

Not until the cause is fixed.

Can I fix Samsung dishwasher error 3E myself?

Only with the owner checks on this page, starting with: check the water heater. If it persists, call a technician or Samsung Support Center (samsung.com/us/support).

Sources

https://www.samsung.com/us/support/troubleshoot/TSG10004499/ (official)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Samsung.