Direct answer: If your LG dishwasher runs and washes normally but dishes come out wet, the most common causes are low or empty rinse aid, a no-heat or short cycle selection, heavy plastic loads, or a vent area that is not opening and moving moisture out near the end of the cycle.
Most likely: Start with the easy stuff: confirm rinse aid is filled, use a heated or normal cycle instead of a quick one, and make sure tall items are not blocking the vent or trapping water in cups and bowls.
Drying complaints can look worse than they are. A dishwasher can wash fine and still leave everything damp if steam cannot escape properly or if the load is set up to hold water. Reality check: plastic usually stays wetter than glass and ceramic even when the machine is working right. Common wrong move: blaming the heater when the real problem is a quick cycle, empty rinse aid, or bowls loaded like little bathtubs.
Don’t start with: Don’t start by ordering a control board or tearing the door apart. Most poor-drying complaints turn out to be settings, loading, rinse aid, or a venting issue you can spot first.
Plastic cups, lids, and containers stay damp, but glass and ceramic are closer to dry.
Start here: Start with cycle choice, rinse aid level, and loading. This pattern is often normal performance plus a small setup issue, not a failed part.
Plates, glasses, silverware, and the tub walls all come out wetter than usual.
Start here: Check for a no-heat cycle, empty rinse aid dispenser, or a vent that is not clearing steam. If the tub never feels warm, move toward a heating fault.
Upper items stay damp while lower dishes dry better.
Start here: Look for blocked airflow, tall items near the vent area, and cups or bowls on the top rack holding water.
The cycle completes, but there is little heat or steam at the end and the inside feels cool.
Start here: That points more toward a heating or venting problem than a loading issue. Confirm settings first, then check for signs the dishwasher is not heating.
Dishwashers dry better when water sheets off dishes instead of clinging in droplets. When rinse aid is low, glasses spot more and cups stay wetter.
Quick check: Open the rinse aid dispenser and confirm it is filled and adjusted to a normal setting. Run another load with similar dishes and compare.
Quick, energy-saving, or light cycles often leave more moisture behind, especially on plastic loads or tightly packed racks.
Quick check: Run a normal or heavier cycle with the usual dry option enabled and see whether the tub feels warmer at the end.
Nested bowls, upside-down cup bases, and tall items near the vent area can hold water and keep steam from leaving the tub properly.
Quick check: Reload with space between items, angle cups so they drain, and keep tall cutting boards or trays away from the vent area.
If the wash performance is fine but the tub never gets warm and everything stays wet, the drying system is not doing its job.
Quick check: Near the end of a heated cycle, carefully crack the door. You should notice warmth and moisture release. If it feels cool, a heating fault is more likely.
Standing water in the bottom changes the diagnosis completely. A dishwasher that does not drain will always leave dishes wet, but the fix is different.
Next move: You have separated a true drying complaint from a drain issue and can keep going without guessing. If you find standing water, the machine may be failing to drain, and that alone can explain the wet dishes.
What to conclude: Drying diagnosis only makes sense after you know the dishwasher is actually finishing the cycle and clearing water out of the tub.
This is the most common fix and it costs nothing. Many poor-drying complaints come from a quick cycle, an empty rinse aid dispenser, or a load heavy on plastic.
Next move: If the next load dries noticeably better, the dishwasher is likely fine and the issue was setup, not a failed component. If everything is still wet after a proper cycle with rinse aid filled, move on to loading and vent checks.
What to conclude: A dishwasher that responds to rinse aid and cycle changes usually does not need parts.
Poor loading can make a healthy dishwasher look broken. Water trapped in cups and bowls is one of the biggest false alarms on drying complaints.
Next move: If the next load comes out much drier, the dishwasher was struggling with load shape and airflow, not a failed drying part. If careful loading does not change anything, check whether the dishwasher is actually getting warm and venting steam.
This separates a normal moisture issue from a real drying-system failure. If the tub never gets warm, settings and loading are no longer the whole story.
Next move: If you get a clear burst of warmth and steam, the dishwasher is heating some, so the remaining problem is more likely rinse aid, loading, or weak vent performance rather than a dead heater. If the tub stays cool and there is little or no warm steam at the end, a heating or vent component problem is more likely.
By now you should know whether this is a simple use issue or a real component failure. That keeps you from buying the wrong part.
A good result: You now have a practical next move: keep using the corrected setup or replace the specific drying component that matches what you found.
If not: If the symptoms are mixed, intermittent, or you cannot confirm heat versus vent behavior, stop before buying parts and have the dishwasher diagnosed in person.
What to conclude: The strongest homeowner-supported repair paths here are a confirmed no-heat condition or a confirmed venting failure. Everything else is usually maintenance, loading, or cycle selection.
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That usually comes down to rinse aid, cycle choice, loading, or venting. If the dishwasher cleans well but dishes stay wet, first check for an empty rinse aid dispenser, a quick cycle, or cups and bowls trapping water. If the tub never gets warm near the end, then a heating problem is more likely.
Yes. Plastic does not hold heat the way glass, ceramic, and metal do, so it often comes out wetter even when the dishwasher is working normally. If only plastics are wet and the rest of the load is mostly dry, that is usually not a failed part.
Yes. It helps water sheet off dishes instead of hanging on in droplets. When rinse aid is low, you usually see more spotting and more water left on cups, bowls, and plastic items.
Run a normal heated cycle and check near the end. The inside should feel warm, and opening the door slightly should release warm, moist air. If the tub and dishes feel cool at the end of a heated cycle, the dishwasher is likely not heating properly.
Not until you know which pattern you have. If the tub stays cool, the heating element is the stronger suspect. If the tub gets warm but steam does not seem to clear and drying is still poor across the whole load, the vent fan motor or vent assembly is the better lead.
Indirectly, yes, if it leads to poor draining or leaves dirty water in the tub. But if the dishwasher is draining normally and the complaint is only wet dishes, rinse aid, cycle settings, loading, and venting are usually more important first checks.