Error code
Samsung dishwasher error code 3E
Samsung dishwasher error code 3E: The dishwasher measured its supply and found it hotter than it will accept. Every spelling Samsung publishes for it, which machines can raise it, and what to do next.
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What we can confirm
Code 3E, from the manufacturer's own documentation
A code is only meaningful together with the machine showing it — the same digits mean different things on different equipment.
The code
3E
The dishwasher measured its supply and found it hotter than it will accept. Samsung's own limit is 176°F, and a house water heater set very high — or a tankless unit set for a long-run shower — will exceed it. This is not a machine problem and the fix is upstream, which is worth knowing before anyone is called out.
or call (305) 506-1256
What it narrows down to
the incoming water is too hot
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the dishwashers
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
two different conditions, and which one depends on the wash system
the wash pump is not running as it should
water is not arriving at the pressure or temperature the machine needs
the machine cannot empty itself
the moving reflector is not traveling as it should
there is less water in the tub than the cycle needs
not an error — the machine is waiting to be connected to a phone
the panel reads a button as stuck
the panel and the main board have stopped talking
the tub is running hotter than it should
the temperature inside cannot be read correctly
the leak sensor has found moisture in the base
The same digits mean different things on different equipment. Search the full code list
In more detail
About Samsung dishwasher error code 3E
What 3E means on this make
The dishwasher measured its supply and found it hotter than it will accept. Samsung's own limit is 176°F, and a house water heater set very high — or a tankless unit set for a long-run shower — will exceed it. This is not a machine problem and the fix is upstream, which is worth knowing before anyone is called out.
Where this appears, and why not to clear it
On the appliance's own display. Samsung reports errors two ways: machines with a digital display show a code, and the same machines without one blink their cycle lights instead. Both are published by the maker and both are on this site. Photograph what the panel shows before cutting the power — Samsung asks for this itself on its refrigerator and dishwasher pages, and it is the one thing that makes a first visit more useful. A code that has been reset is information a technician no longer has.
What to do about it
- Check the setting on the water heater. Anything above 176°F will produce this.
- On a tankless heater, check what the unit is set to deliver rather than what the tap feels like.
- If the supply is within range and the code stays, the temperature sensing in the machine is what to look at.
Where this goes next
The job this usually becomes is diagnostic visit, and that page carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes, reminders and settings rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call (305) 506-1256 and describe what the panel is doing before booking anything.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards