Error code · Dishwasher

LG Dishwasher Code HE: Water Heater

Medium · inspection needed

Code: HE
Appliance: Dishwasher
Brand: LG
Warranty: 30-day workmanship

What HE means

HE on an LG dishwasher means the heater that warms the water has malfunctioned. The dishwasher needs hot water to dissolve detergent and clean properly, so the control stops the cycle and shows HE when the heater does not do its job. Codes can differ by model. The heater and its wiring sit inside the machine, around live circuits, so this needs a technician rather than a home adjustment. Dishes from a failed cycle may be cold, cloudy, or still dirty.

Common causes of HE

Water heater element
Heater wiring or connector
Temperature sensing used with the heater
Control output to the heater

✓ One safe check you can try

1. Cancel the cycle and let the water drain. 2. Let the tub cool before touching anything. 3. Do not open panels or touch wiring. 4. Rewash dishes by hand or after the repair. 5. Call us and mention the code HE.

! Why to stop there

The code names the heater, but wiring and sensing can give the same result, so we test the circuit before replacing the element.
We check that the heater warms the water to the right range.
We run a full cycle and confirm clean, hot results before we finish.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

tELG Dishwasher Code tE: Temperature Sensor AE, EI, FELG Dishwasher Codes AE, EI, FE: Leakage or Overfilling bELG Dishwasher Code bE: Oversudsing CLLG Dishwasher Code CL: Control Lock E1LG Dishwasher Code E1: Leak In The Base F31LG Dishwasher Code F31: Heat Dry Fan F35LG Dishwasher Code F35: Heat Dry Temperature F37LG Dishwasher Code F37: Auto Open Door

HEHE questions

Can I keep running the dishwasher with HE?

We would not. Cold water does not clean well, and the heater circuit is in question. Wait for the repair. Wait for the repair, and wash dishes by hand in the meantime so you are not rerunning failed cycles.

Will you replace the heater?

Only if the test shows it is the cause. We check the circuit first and give you a written price before any work, and our workmanship carries a 30-day warranty.

Why is this not a home fix?

The heater sits inside the machine with live wiring and water close together. That is not a safe place for an owner to work. Please leave the panels closed and call us, and we will test the heater circuit safely.

Book a visit

Still seeing HE?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 597-5662