he
Moderate
LG · Dishwashers
Heater error - the dishwasher was unable to heat the water, or the water temperature exceeded 149 degrees Fahrenheit
Quick Answer
Error code HE on your LG Dishwashers means: Heater error - the dishwasher was unable to heat the water, or the water temperature exceeded 149 degrees Fahrenheit. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Press the POWER button to turn off the dishwasher
2
Turn off the circuit breaker for 10 seconds, then turn it back on and start a new cycle
3
If the error returns, disconnect power and access the heating element (located at the bottom of the tub)
4
Check wiring connections to the heating element for loose or damaged wires
5
Use a multimeter to measure resistance across the heating element terminals; the reading should be approximately 12 ohms
6
If the multimeter shows infinite resistance (open circuit), replace the heating element
7
If the heating element tests good, check the thermistor and control board
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Heating element
Thermistor
Wiring harness
Control board
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