mypros+
Error code reference

Samsung Dishwasher Error Code HE (High Temp Heating)

High temperature heating error

Samsung codesSamsung dishwasher codes
Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the HE (High Temp Heating) error code actually means

Your Samsung dishwasher detected that the water temperature reached an extremely high level, above 176°F, and stopped the cycle as a safety precaution. This could mean the water coming into the dishwasher is genuinely too hot, or it could mean the temperature sensor inside the dishwasher is faulty and giving an incorrect reading. A technician will need to check both the water supply temperature and the sensor to find the root cause.

Diagnostic procedure

The full HE (High Temp Heating) procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check water supply temperature (80°C or above). Possible defect: Thermistor, Main PBA.
Unlock with pass
Unlock with pass
Unlock with pass
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock HE (High Temp Heating) procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of HE (High Temp Heating)

Ranked by how often they cause this code
  1. 1Faulty thermistor
  2. 2Excessively hot water supply
  3. 3Main PBA (control board) failure
  4. 4Wiring harness damage between thermistor and Main PBA

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about HE (High Temp Heating)

What does HE (High Temp Heating) mean on a Samsung dishwasher?
The HE code means the dishwasher's thermistor detected a water temperature of 80°C (176°F) or higher for more than 3 seconds. The control board halts the cycle when this threshold is exceeded to prevent damage. The error points to either a genuine overheating condition from a very hot water supply or a malfunction in the thermistor or main control board.
Is it safe to keep using my Samsung dishwasher when the HE error appears?
No, you should not continue running the dishwasher while the HE error is active. The code indicates a temperature condition that exceeds the normal operating range, and continued operation could potentially damage internal components or worsen an underlying fault. Allow the dishwasher to cool down and diagnose the cause before running another cycle.
How much does it cost to repair the HE error on a Samsung dishwasher?
Repair costs depend on the faulty component. A thermistor replacement typically costs between $50 and $150 including parts and labor. If the Main PBA is at fault, parts and labor combined can range from $150 to $350 or more depending on the specific model and local labor rates. If the issue is simply an overheated water supply, adjusting the water heater setting costs nothing.
Can I fix the HE error on my Samsung dishwasher myself?
Some causes are DIY-accessible. Start by checking your water heater temperature setting and the temperature of the hot water supply at the dishwasher inlet. If the supply temperature is normal, a thermistor replacement is a moderately involved repair that requires access to the wash system interior. Main PBA replacement is more complex and may be better handled by a qualified technician.
Will resetting my Samsung dishwasher clear the HE error code?
A reset may temporarily clear the code, but the error will return if the underlying cause is not resolved. To reset, power off the dishwasher at the circuit breaker for a few minutes, then restore power. If the HE code reappears on the next cycle, the thermistor, wiring, or control board needs to be inspected and repaired.

Related Samsung dishwasher error codes

All Samsung dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass