Direct answer
Bottom-rack failure often follows a blocked lower arm, filter debris, cookware blocking rotation or weak circulation.
What this covers
- Dishwashers · spray system
- The exact symptom in the title before component-level repair
- Consumer-accessible controls, connections and maintenance areas
What it does not cover
- ×Smoke, burning odor, swelling, liquid on powered parts or damaged wiring
- ×Opening sealed panels, bypassing interlocks or live-electrical testing
- ×Account ownership, billing or warranty disputes
Observe before changing anything
ReversibleRotate the lower arm by hand and check for labels, seeds, glass or utensils beneath it.
Isolate the failing boundary
ReversibleClean the filter and approved spray holes and run an empty circulation test.
Apply the narrow correction
ReversibleReload cookware so the arm clears and face dirty surfaces toward the spray.
Verify the result and stop at the boundary
ReversibleStop for broken spray parts, grinding pump noise or no wash circulation.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What should I check first for “Dishwasher bottom rack is not getting clean”?+
Rotate the lower arm by hand and check for labels, seeds, glass or utensils beneath it.
How do I know whether the problem is external or inside the device?+
Clean the filter and approved spray holes and run an empty circulation test.
When should I stop and request repair?+
Stop for broken spray parts, grinding pump noise or no wash circulation.
Answer for the exact device and software version shown above.