LG · Dishwasher Moderate

tE — Heating / Thermistor Fault

tE (Temperature Error) means the water-temperature thermistor is out of range, so the dishwasher cannot control heating for wash or dry.

Keep using it?
Yes, with caution
DIY difficulty
Moderate
Typical cost
$15-35
Verified against
lg.com ↗

The fix

Thermistor

Heater / thermistor circuit error

$15-35 moderate difficulty 60 min Tools: screwdriver, multimeter

Diagnose first: Thermistor fails out of range more often than the heater itself; meter both before ordering.

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Didn't resolve it? Next suspect: Heating element / heater assembly ($60-140)

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How to fix it

  1. Power-cycle the dishwasher at the breaker.
  2. Test the thermistor resistance against spec.
  3. Inspect the heating element and wiring.

Why it happens

Typical signs: Poor drying or cold wash · Cycle stops mid-way · tE on the display

  • Faulty thermistor The temperature sensor has drifted or failed.
  • Heater circuit fault An open heating element or wiring problem.

Other parts sometimes needed

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • LG Dishwasher Thermistor Common replacement
    Amazon →

More LG dishwasher codes

2H 2H — Delay-start indicator (2 hours remaining) AE AE — Leak Detected (Aqua Error) bE bE — Bubble / oversuds error CE CE — Motor / communication error CL CL — Child lock / control lock active CR CR — Test / calibration mode

All LG codes → All dishwasher codes →

Frequently asked questions

What does the tE code mean on a LG dishwasher?

tE (Temperature Error) means the water-temperature thermistor is out of range, so the dishwasher cannot control heating for wash or dry.

What causes the tE code on a LG dishwasher?

Faulty thermistor: The temperature sensor has drifted or failed. Heater circuit fault: An open heating element or wiring problem.

Is it safe to keep using a LG dishwasher with a tE error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix tE on a LG dishwasher?

Power-cycle the dishwasher at the breaker. Test the thermistor resistance against spec. Inspect the heating element and wiring.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: lg.com.