A dishwasher may not be draining for several common reasons:
- Dirty or clogged filters that trap food particles and grease, preventing proper drainage. Filters should be cleaned regularly, about every two weeks, to avoid buildup.
- Problems with the disposal connection (if the dishwasher drains through a garbage disposal), such as air gaps or clogs. Running the disposal can sometimes clear the issue.
- Malfunctioning dishwasher pump, due to debris like broken glass or food blocking it, which stops water from being pumped out.
- Clogged or kinked drain hose restricting water flow. This hose needs to be free from blockages and properly connected without twists.
- Faulty drain valve (if equipped) that might be stuck and preventing drainage.
In summary, the main causes to check are filter cleanliness, pump function, hose condition, and disposal connectivity. If these are all fine, it might be a mechanical or electrical fault requiring professional repair.
