The short answer
A dishwasher that finishes with water in the sump has lost its drain path, and on a built-in machine that path runs partly outside the cabinet — through a hose, often through an air gap, and often into a waste disposer. The reason a drain pump jammed by glass or a label heads the ranking on a Crosley is simple: on a machine that has been in the same place for years, the parts that have been moving all that time are where the fault usually is. The filter, the hose loop, the air gap and the disposer knockout are owner work; the pump and the check valve are not. The order below is written for a long-service machine in a settled installation; on a unit that was installed or moved in the last few weeks, setup and supply faults rank above everything here.
What the machine is doing
- Water backs up into the sink when the machine drains — That is the shared waste line, not the dishwasher.
- The drain motor runs but the level never falls — A running pump moving nothing means a blockage rather than a dead pump.
- Standing water covers the sump filter at the end — A shallow film is normal on many models; water above the filter is not.
- NEAR MISS — Dirty water stays on the door or under the bottom rack after a wash — That can be poor rinsing rather than a drain fault — see the cleaning page.
The ranking
- A drain pump jammed by glass or a label — First on this brand: on a machine that has been in the same place for years, the parts that have been moving all that time are where the fault usually is. Broken glass and paper labels reach the impeller and stop it; the motor buzzes and nothing moves.
- A check valve holding shut or leaking back — Second: The check valve stops waste returning; stuck shut it prevents draining, and stuck open it lets the sink refill the tub.
- A blocked air gap on the sink deck — Third, and the last to suspect: Where an air gap is fitted it collects grease and debris, and when it blocks the machine cannot push water past it. The filters, screens and seals on a long-service unit are years older than the owner tends to remember, and they fail gradually rather than suddenly.
Working order
- Listen at the start of the drain step — A buzz with no water movement is a jammed impeller; silence points at the control or the supply to the pump. It goes first because on a machine of this age the wearing parts are where the fault usually is, and this one is quick to confirm.
- Note whether the tub refills between cycles on its own — Water appearing without the machine running is a check valve or a siphoning hose, not a pump.
- Lift the air gap cover and look inside — Water spurting from the air gap during a drain is a definite finding and it points straight at the blockage.
What an owner can safely check
- Remove the air gap cap and clean the chamber and its outlet hose — A bottle brush and hot water clear most of them.
Tools: bottle brushAbout 20 min
- Remove the filter, wash it in hot soapy water and clear the sump by hand — Scoop standing water out with a cup and a sponge first, then check for glass before putting fingers in the sump.
Tools: sponge, cup, brushAbout 25 min
- Stop here if the next move needs a meter on live terminals — That is where an owner check ends and a service call begins.
The hazards on this appliance
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Close the taps before any hose comes off, and never bypass a door or lid switch to run the machine open.
When to call a technician
Call when the filter is clean, the hose has a high loop, the air gap is clear and any knockout plug is out, and the machine still holds water — the pump and the check valve are under the tub.
Nearest pages of this class
Scope of this page
This is the family-agnostic page for Crosley dishwashers. Nothing more specific exists to send you to at the moment; a model-level page, once written, is linked here and is the better answer. Deliberately not here: wiring colours, resistance values, torque figures and part numbers, which differ between families.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
