Written by
Marcus Lindqvist Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeHE
ApplianceDishwasher
What HE stands for
HE is the heater error. The heater that warms the water for your LG dishwasher has malfunctioned, so the water entering the machine is not heated. Which codes appear can differ by model.
What LG lists for this code
No steps are given for the owner.
The error needs an inspection by a service technician.
The guide’s instruction is to request service. The heater is the part under inspection.
Look at these as well
F35 covers Heat Dry temperatures that cannot be measured on Dynamic Heat Dry models.
LE points to a cleaning motor that is not working properly.
If HE has come up on a dishwasher in San Francisco or elsewhere around the Bay, dial (415) 223-7887 to ask about LG dishwasher repair. Note the code, the model number and when the water last felt unheated, so the visit can be planned around it.
Model compatibility: LG reuses codes across series and model years, so HE may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
HE is the LG dishwasher heater error, meaning the water supplied is not being heated.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your LG appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
