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 LDPH7972S
LG LDPH7972S: exact support-linked IE, OE, AE and component error codes, with normal status and model-specific loading guidance.
Identify the stainless LDPH7972S and its display
LG's LDPH7972S is the PrintProof stainless variant named on its Builder specification sheet; the black stainless version ends in D. This distinction matters because the linked owner's manual covers the wider LDPH797 family, while the exact support page attaches its English PDF to this sales model. The specification gives this S version fifteen place settings, a height adjustable third rack, top controls and a hidden front LED countdown. The manual's panel drawing also shows a digital display rather than a purely mechanical selector. A 42 dBA rating describes normal wash sound, not a fault threshold. Before searching for an error, note whether the characters are on the top panel, the front timer or a status light, and record the complete characters rather than only their first letter.
Treat inlet, drain and leakage messages differently
IE concerns the incoming supply: the LG table directs a check of the inlet hose for a clog, kink or freezing and of the household water supply. OE belongs to the outgoing path; its checks include the drain hose, an air gap or disposal and the filters. These are distinct inspections even though both can interrupt a cycle. AE means water leakage, not a request to refill the rinse aid. For AE the manual says to turn off the dishwasher's water supply and contact LG, while the drain pump can run intermittently until the condition is resolved. FE is another water-related display, but its meaning is excessive water supplied and the table directs service. Installation pages warn that poor leveling can lead to leaks and AE; check the cabinet fit and level without treating a recurring AE alert as a routine adjustment.
Separate foam from heater, sensor and motor faults
A bE display has an unusual dual explanation in this manual: oversudsing from unsuitable detergent or failure to level the dishwasher. Hand dishwashing liquid is not an acceptable substitute for automatic dishwasher detergent. LG describes how to clear remaining suds before starting again and asks the owner to check the appliance's level. The rest of the p45 table separates internal systems more finely. HE names the heater circuit; tE names the water temperature sensor; F3s names the heated air temperature sensor. LE refers to the wash motor, F31 to the heated-air drying fan motor and NE to the Vario motor. These are not alternate spellings of an inlet or drain fault. The manual directs owners to LG for these failures, so the useful first step is an exact transcription of the displayed code, not opening the machine.
Recognize normal labels before interpreting the timer
The LDPH7972S offers ten listed cycles and eight options, including a one-hour wash and dry program, Dynamic Heat Dry and TrueSteam. The top display gives an estimated remaining time: heating delays, soil and the chosen options can change that estimate. Delay Start instead shows delay hours. Pressing Start and closing the door must happen within four seconds, otherwise the machine sounds an alarm on closure. The manual expressly labels P-series Download Cycle identifiers, test-mode patterns, rinse-aid levels and CL as non-error displays. CL means Control Lock and is changed with Night Dry plus Delay Start; L0 through L4 are rinse-aid settings rather than component codes. A flashing Machine Clean LED after thirty cycles is another maintenance reminder. Do not turn every changing number on the front countdown into an error diagnosis.
Use the model's loading and installation details
QuadWash Pro and three specified spray arms serve the fifteen-place-setting interior, but water still needs access between dishes. LG recommends removing large food debris, soaking burnt-on residue, placing deep pans upside down and keeping pieces from touching. The upper rack can be moved up or down for taller items; the manual says to empty it before adjustment. Its separate silverware basket guidance keeps utensils apart and recommends unloading silverware first to avoid water drops from the upper rack. The exact cabinet dimensions are 23¾ inches wide, 33⅝ inches high and 24⅝ inches deep, with a leveling range documented on the specification sheet. LG estimates 238 kWh per year for this model. Those figures help verify fit and expected use, whereas an active AE, FE or motor code should follow its own table rather than a general cleaning routine.
Verified model details
The stainless S model has a digital top panel and front LED countdown
Source for this detail · Source page: 1IE, OE, AE and FE distinguish four water-related paths
Source for this detailCL, rinse-aid levels and Download Cycle labels are not faults
Source for this detail · Source page: 45
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
LG LDPH7972S.ASSESNA: Support, Manuals, Warranty & More | LG USA Product Support Page
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.