Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codeHE
ApplianceDishwasher
Quick answer
LG dishwasher HE means the water is not being heated. What the manual says to do.
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
Heater error: the water supplied to the dishwasher is not being heated.
HE on an LG dishwasher is the heater error. It can appear when the heater that warms the water for the dishwasher malfunctions, so the water supplied is not being heated. Codes can differ depending on the product model.
What to do about HE
The manual lists no owner steps for this code. It says the error requires inspection from a service technician and asks you to request service. A technician looks at the heater itself.
Related codes
F35 is the Heat Dry temperature error on Dynamic Heat Dry models.
When HE appears, call (310) 742-8008 for LG dishwasher service in Los Angeles. Give the code, the model number and when the water last felt unheated, and the visit can be planned around that. See LG dishwasher repair for more.
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.
