Error code
Samsung dishwasher: Thermistor not operating correctly
Samsung dishwasher — reported by blinking lights rather than by a code. A sensor that is not shorted and is not to be trusted either.
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What we can confirm
Code Normal and Heavy, from the manufacturer's own documentation
This code has no number, because this equipment has no display to put one on. The appliance signals it instead — an alarm, a symbol or a pattern of lights — and what it means is recorded in the documentation that ships with it.
The code
Normal and Heavy
A sensor that is not shorted and is not to be trusted either. The practical effect is the same as any temperature sensing problem on a dishwasher: the heated parts of the cycle stop being reliable, and drying goes first.
or call (305) 506-1256
What it narrows down to
the temperature sensor is not behaving
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
the incoming water is too hot
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 same digits mean different things on different equipment. Search the full code list
In more detail
About Samsung dishwasher: Thermistor not operating correctly
What the appliance is actually reporting
A sensor that is not shorted and is not to be trusted either. The practical effect is the same as any temperature sensing problem on a dishwasher: the heated parts of the cycle stop being reliable, and drying goes first.
Where this appears, and why not to clear it
On the cycle lights, on a machine with no digital display. Samsung publishes what each combination means, and on those models the combination is the entire diagnosis — it disappears the moment the power is cut. Write it down or photograph the panel before switching anything off. Samsung adds one caution of its own and it saves service calls: on some models the lights blink to show cycle status, so treat it as an error only if the machine is misbehaving as well.
Which machines this one applies to
Models with no digital display, which report by blinking their cycle lights. Samsung itself flags that several of its codes mean two different things depending on the model — dC, 3E and BE2 on washers, and 1E on dishwashers — so the model number is what settles which reading applies to your machine. It also publishes nothing at all for freezers, ice makers and range hoods, which is why those appliances have symptom pages here and no code pages.
What to do about it
- Empty the machine, add detergent and run a normal cycle.
- Note whether drying has got worse.
- If it repeats, the sensor needs measuring.
Where this goes next
The job this usually becomes is temperature sensor replacement, 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