Dishwasher not cleaning: the filter, the spray arm holes, and the inlet valve screen

@applianceandy · Oct 8, 2026 · 2.1k views
Difficultyeasy
Time30 minutes

Pull the lower rack, twist out the filter, and be horrified. Clean it. Pull the spray arms (usually a twist or a clip) and poke every hole with a toothpick; seeds and glass shards block them. Run a cycle with a cup of white vinegar. If water seems low, the inlet valve screen (behind the kick plate, where the supply line connects) is clogged with sediment, or the valve is weak; a new valve is $25. Run hot water at the sink until it is hot before starting the dishwasher so the first fill is hot.

#dishwasher#filter#spray-arm#inlet-valve#appliance

45 💬 9 comments

9 comments

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Upvoted for the safety notes alone.

12
@applianceandy OP 13d ago

Glad it helped.

6
@drainpipe_dave 11d ago

Upvoted for the safety notes alone.

11
@torque_tina 11d ago

Question: do you need to disconnect power for this or is it safe to leave it plugged in?

8

Followed along, got it done in about twice the time quoted, but it is done and it works.

6
@applianceandy OP 12d ago

Unplug it. Always. Takes two seconds and the worst case otherwise is a trip to the ER.

2

Nice. What did the whole thing end up costing you?

3
@sparky_sal 11d ago

Nice. What did the whole thing end up costing you?

0
@applianceandy OP 12d ago

Unplug it. Always. Takes two seconds and the worst case otherwise is a trip to the ER.

7

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