MODEL PROFILE
Signal or code
Error codes and display signals
The official manual linked for this model documents these messages. Some indicators apply only to variants that display them; each entry is labeled as a code, indicator, or status.
No matching signal for this model.
Model and error-code facts may be shown in the language of the original source.
MODEL OVERVIEW
About this model: LG SDWB24W3
LG STUDIO SDWB24W3: Essence White dishwasher with SignaLight, F3s/F31 heat-dry faults and model-linked owner PDF.
Identify the Studio white variant
SDWB24W3 is LG STUDIO's Essence White member of the SDWB24 dishwasher family. The official builder sheet names that exact finish, while the linked owner cover says SDWB24** and its handle-installation page explicitly names SDWB24W3. Together with LG's exact product and support pages, those details tie this particular manual and its error table to the model rather than a similar stainless variant. The sheet rates it at 40 dBA with fifteen place settings, a top-control panel and a bar handle. Inside are three spray arms, a height-adjustable cutlery rack, an LED tub light, QuadWash Pro and TrueSteam. Its white exterior and light bronze handle are model-identifying details, useful when comparing parts or a replacement door, not evidence that a generic white LG uses the same control board.
Read the light, screen and door timing
Watch the SignaLight at the front before treating every illuminated character as a failure. According to the owner guide, red means an error, steady white means normal operation and blinking white means the cycle is paused; green follows normal completion. The top digital display normally shows estimated or remaining time, so an ordinary number is not a fault code. The Machine Clean reminder flashes after thirty cycles, and a low rinse-aid light asks for replenishment. To start after touching START, close the door within four seconds; missing that window produces a chime and no running cycle. ENd at completion is also expected. LG permits ordinary chimes to be adjusted, but explicitly says the error alert cannot be turned off. Record the light color, exact characters and cycle stage when seeking help.
Choose a cycle before interpreting wet dishes
The exact specification enumerates ten wash cycles and eight options. Auto senses soil, Heavy targets hardened deposits, Delicate protects finer dishes and 1 Hour includes heated drying for lightly soiled loads. The downloadable position starts with P1 Machine Clean; downloaded Express and Rinse omit drying, so wet dishes after either do not establish a heater failure. Night Dry periodically operates the ventilation fan to limit condensation when dishes remain overnight. Remote Start can launch a cycle from the app once enabled, and the product supports Wi-Fi and ThinQ. The third rack and adjustable upper basket allow different loading patterns, but bulky items must not block the spray arms. Published annual energy use is a comparison figure, not a fixed consumption for a heavily soiled load with Steam and Dry Boost selected.
Trace water faults and maintain the flow path
IE means the inlet side is not receiving water properly; check the house tap and accessible feed hose for a kink, ice or blockage. OE instead concerns drainage. The manual specifically points to the drain hose, air gap or disposal and filters, which should be inspected before blaming the pump. LG recommends cleaning the filter after each load for best performance. bE can result from hand-dishwashing liquid, foam-heavy food or an unlevel installation; use only automatic-dishwasher detergent. AE is more urgent because it means water leakage. LG instructs owners to shut off the supply and contact service; the drain pump may run intermittently during this condition. FE means too much water was supplied and is likewise a service matter. The manual's water-pressure range is twenty to eighty psi, useful context if inlet warnings recur after plumbing work.
Separate blower faults from routine drying
This Studio model has a heat-dry blower, not just a passive vent. Its manual distinguishes HE, a heater-circuit fault, from F3s, a heated-air temperature-sensor fault, and F31, a heated-air fan-motor fault. LE is the wash motor, while NE is the Vario motor. These displayed codes identify the affected system; they do not prove a particular replacement part without service diagnosis. The care section recommends cleaning food from the vent-cover gap about every four months, waiting until the blower cools and keeping water out of its tube. That maintenance instruction must not be mistaken for permission to disassemble the fan after F31. Conversely, CL, downloaded P labels and rinse-aid setting labels are documented operating states, not component errors. The model-linked PDF and exact SDWB24W3 identifier should accompany any service report.
Verified model details
Essence White SDWB24W3 is named in the official specification
Source for this detail · Source page: 1A red SignaLight marks a real error
Source for this detail · Source page: 23F3s and F31 distinguish heated-air sensor and fan faults
Source for this detail · Source page: 8The manual separates downloaded program labels from errors
Source for this detail · Source page: 44The replaceable bar handle is described for this exact model
Source for this detail · Source page: 1
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
LG STUDIO Essence White Dishwasher - SDWB24W3
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.