he1
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Samsung · Dishwashers
Thermistor overheat error - temperature sensor detects water above 176F
Quick Answer
Error code HE1 on your Samsung Dishwashers means: Thermistor overheat error - temperature sensor detects water above 176F. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Unplug the dishwasher immediately and allow it to cool for several hours.
2
Check the thermistor (temperature sensor) for proper resistance readings using a multimeter.
3
Inspect the wiring between the thermistor and the main control board.
4
If the thermistor reads incorrectly, replace it.
5
If the thermistor is functioning correctly, the main power board heater relay may be stuck and the board needs replacement.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Thermistor (temperature sensor)
Main power board assembly (PBA)
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