ErrorCodeDoctor
LG · Dishwasher

LG Dishwasher HE error code

Difficulty: Hard · Cost: $80–$250 · Duration: 5m

The HE error means your LG dishwasher detected a problem with the water heating system. This happens in two situations — either the water failed to reach the required temperature during the cycle, or the water temperature exceeded the safe maximum of 149°F. Both trigger the same code as a protective measure. A power reset using the circuit breaker resolves it in some cases. If HE keeps returning the heating element, thermistor, or control board will need to be inspected by a technician.

Common causes

  • Heating element has malfunctioned and cannot heat the water to the required temperature
  • Thermistor is faulty and giving incorrect temperature readings
  • Water temperature exceeded 149°F due to a heating component fault
  • Temporary electronic glitch causing a false heating error

How to fix it

  1. 1

    Press the POWER button to turn the dishwasher off

  2. 2

    Turn off the circuit breaker supplying the dishwasher and wait 10 seconds

  3. 3

    Switch the circuit breaker back on

  4. 4

    Press the POWER button to turn the dishwasher back on and start a new cycle

  5. 5

    If HE returns after the reset the heating element or thermistor needs inspection by a technician

Related LG Dishwasher error codes

1

bE

The wrong type of detergent was used or the dishwasher is not level

easy
2

CL

Child lock or control lock is active — buttons are disabled

easy
3

AE / E1

Water has leaked into the base of the dishwasher and activated the float switch

medium
4

IE

The dishwasher did not fill with enough water within 10 minutes

easy