The short answer
This page covers an Electrolux dishwasher that does not drain at all, leaving standing water at the end of the programme. That is a blockage diagnosis: the filter and sump, something jamming the impeller, or a drain path that was never opened. A machine that drains slowly or partially is a different fault and the companion page covers it.
Causes, ranked for this Electrolux dishwasher
- Filter and sump blocked — Why: The filter catches everything the wash removes, and on a machine where it has never been cleaned it eventually blocks the drain path completely rather than partially.
- Disposer knockout plug never removed — Why: A newly connected disposer whose sealed inlet disc was left in place stops the drain absolutely, and it is the classic fault immediately after plumbing work.
- Foreign object jamming the impeller — Why: Glass fragments and fruit stones pass the filter seat and lock the impeller, which produces either a hum with no flow or complete silence.
- Drain hose crushed or kinked behind the machine — Why: A hose pinched when the machine was pushed back into its opening stops the drain as completely as any blockage, with nothing having failed.
- Drain pump failed — Why: Last, because a silent pump is far more often jammed than dead, and each cause above is owner-correctable while this one is not.
What to check, in order
- listen at the drain step and note whether the pump runs at all. — Because: a running pump with no flow is a blockage; silence is a jam or a failure.
- bail the standing water out and remove the filter assembly. — Because: nothing else can be checked with the tub full, and the filter is the top-ranked cause.
- if a disposer was connected recently, confirm its knockout plug was removed. — Because: it stops the drain completely and it is the classic post-installation fault.
- check the drain hose behind the machine for a crush or kink. — Because: it is free to correct and it produces exactly the same total blockage.
Checks you can safely do yourself
- Switch the machine off at the breaker and let the standing water cool before reaching into the tub. — Tools: none — Time: several minutes
- Bail the water out with a jug and a sponge until the sump and filter are visible. — Tools: a jug and a sponge — Time: several minutes
- Remove the filter assembly, wash it under running water, and clear the sump beneath it carefully with gloves on. — Tools: gloves, a brush and a torch — Time: several minutes
- Open the sink cabinet, check any recent disposer connection for its knockout plug, and confirm the drain hose is not crushed. — Tools: a torch — Time: several minutes
- Refit the filter fully home and run a short programme to confirm. Stop here: the pump and its impeller are reached from underneath the machine. — Tools: none — Time: the better part of an hour, mostly waiting
Before you open anything
Safety
unplug-before-service
Wear gloves when clearing a dishwasher sump, since broken glass is the commonest thing found there and it is not always visible. Kill power at the breaker rather than the door before reaching in, and do not bail hot water by hand — let the machine stand until it has cooled.
Where the owner fix ends
Bailing the tub, cleaning the filter and sump, and correcting the hose or knockout are owner work. Call a technician when the filter is clean, the hose is clear and the machine still will not drain, because the pump must then be reached from underneath; and call a plumber when the sink drain itself is blocked.
Nearest pages of the same kind
Generalized information — what this page does not cover
family model
This page is generalized information covering only the total-blockage branch of the Electrolux dishwasher drainage complaint; the companion page linked below covers slow and partial draining. Neither separates the built-in and integrated families. No family-level or model-level page exists in this reference yet; when one is published it will be linked here.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
