LG dishwasher
showing HE
The heater could not warm the water, or the water went above 149°F.
Mon–Sat, 8am–8pm
- Heating
- Heating and drying repair
- Source: LG
Book a visit
Three short steps, about a minute.
or call (844) 430-4286
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What HE
actually means.
The heater could not warm the water, or the water went above 149°F. Either one counts as a heater error on LG.
LG dishwasher display
What to do when HE shows on the dishwasherKind of codeHeating
The water did not reach the temperature the cycle calls for in time. A heating element, its thermal cutoff or the sensor reading it.
Usually leads toHeating and drying repair
Cold washes, wet dishes and cycles that run for hours, traced to the heater, its sensor or its safety cutout.
Shows up asDishwasher Not Heating Water
Dishes and the tub are cool at the end of the cycle, and grease stays on plates.
MakeLG
Built-in dishwashers with stainless tubs and connected features on many recent models.
SourceLG US support: Dishwasher error code list (Wayback copy, 11 Dec 2025)
LG dishwashers with a display; LG gives the same meaning across its models.
Before you book,
in this order.
Each step comes from LG's own guidance for HE on its dishwashers. Follow it to the end: the last card says whether this is a visit.
Press Power to turn the dishwasher off.
Switch the breaker off, wait 10 seconds, switch it back on.
Turn the dishwasher on and start a fresh cycle; if HE shows again, book a visit.
Still there?
It usually turns into heating and drying repair. Book with the code and the model number.
What not to do
Do not keep running loads that never get hot. Without heat, detergent does not dissolve properly and the dishes come out filmed.
What you may
notice with it.
The dishwasher problems HE tends to arrive with. Answer these at the dishwasher before anyone is booked.
All problems
Dishwasher Not Heating Water
5 causes, cheapest first
Where HE usually leads
Heating and drying repair.
Read these
before the visit.
Short guides that make the call quicker and the diagnosis cheaper.
All guidesLG
dishwashers.
Built-in dishwashers with stainless tubs and connected features on many recent models.
LG dishwasher repair
In LG's own words
This error occurs when the unit was unable to heat the water or the water was overheated above 149°F.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. LG dishwashers with a display; LG gives the same meaning across its models.
LG HE dishwasher repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about HE.
Can I clear HE myself?
Does HE on my LG mean the water was too cold or too hot?
What happens if I ignore HE and keep washing on my LG?
Back to your everyday
Still showing HE?
Book with the characters exactly as shown, the full model number, and whether any water is on the floor — for a code, that is where the diagnosis begins.