SDNTH981S
LG SIGNATURE SDNTH981S Dishwasher Repair

Most common issues on this model
- FlushFit mounting and door alignment
- LED back-panel lighting
- Quiet-running pump and arms
- Heated dry stage after a short cycle
The SDNTH981S is an LG SIGNATURE dishwasher from the Iconic Collection and is a premium model. A FlushFit design keeps the front flat with the cabinets, a 1-hour wash and dry cycle shortens the wait, operation is listed at 39 dB and LED back-panel lighting shows the interior. The SDNTH981E is listed as a variant.
A flush-fit unit needs careful installation. We check that it sits level, that the door aligns with the cabinets and that nothing strains the supply and drain lines behind it. With 39 dB as the goal, we listen for rattles and trace them quickly.
The short cycle relies on heat, so a damp load sends us to the heater and vent. Before ordering parts we read the model and serial on the label, then give a written price.
Key features
- LG SIGNATURE Iconic Collection top control dishwasher
- FlushFit design
- 1-hour wash and dry cycle
- Quiet by design at 39 dB
- LED back-panel lighting
- Also listed as SDNTH981E
Error codes this model can show
What does FlushFit mean?
FlushFit refers to a design that sits flush with surrounding cabinets. It makes alignment and level matter more, so we check them when the door sticks or leaks.
Why would the interior light not work?
The LED back-panel lighting may have a loose connection or a failed driver. We check the wiring and test the light before replacing anything.
Is the SDNTH981E different?
It is listed as a variant of the same dishwasher. We confirm which one you have from the label. Parts for each version can differ slightly, so the label decides which piece we order. Parts can differ.
Book repair for your SDNTH981S
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.
