Frigidaire Dishwasher Standing Water in Bottom — What’s Happening
Standing water in the bottom is not itself a Frigidaire fault code. It describes a drain symptom. Frigidaire states that some water in the tub after a cycle can be normal, but if water is covering the filter screen or remains as standing water, you have a drainage problem.
Frigidaire’s own support guidance points technicians toward the drain path for this symptom, not the wash system. Related drain error codes like i20, i40, and iF0 may appear on some models, but the standing water itself is a physical symptom that requires checking the filter, hose, disposal connection, and drain pump.
Most Likely Causes
- Blocked filter or sump screen Food debris or foreign objects lodged in the filter basket or sump area prevent water from reaching the drain pump, and this is the most common cause of standing water covering the filter screen.
- Clogged or kinked drain hose A hose with kinks, sharp bends, or internal blockages cannot evacuate water even if the pump runs normally.
- Garbage disposal knockout plug not removed On new disposal installations, the knockout plug inside the drain inlet must be removed or the dishwasher drain path is completely blocked.
- Drain pump obstruction or damaged impeller Debris jammed in the pump housing or a weak or broken impeller stops discharge even when the hose is clear.
- Faulty check valve or drain valve A stuck or failed valve in the drain path can prevent water from leaving the tub during the drain cycle.
- Blocked air gap Where installed, debris in the air gap cap or internal path restricts drainage and can cause backflow into the dishwasher.
- Improper drain hose routing A hose installed without a high loop around 32 inches minimum or positioned below the disposal inlet can allow siphoning or poor drainage.
How to Diagnose and Fix
- Disconnect electrical power at the breaker and shut off the water supply before opening the unit.
- Remove the bottom rack and verify whether the water is only a shallow residual puddle or is covering the filter screen.
- Remove the lower spray arm if needed, release the filter assembly, and clean out all food debris and foreign objects from the basket and sump area.
- Inspect the drain hose routing under the sink and confirm there are no kinks, twists, sharp bends, or an inadequate high loop.
- Disconnect the drain hose from the pump outlet and the sink or disposal side and check inside for blockages.
- Run the garbage disposal and inspect the drain inlet on the disposal to verify the knockout plug was removed on new installations.
- If an air gap is installed, remove the cap and clear debris from the air gap path.
- Remove the lower access panel, open the pump area, and look for debris lodged in the impeller or pump housing, then confirm the impeller spins freely by hand.
Parts You Might Need
| Part | Notes |
|---|---|
| Frigidaire dishwasher drain pump | Amazon | Replace if the impeller is free but the pump does not run or if continuity testing shows the motor windings have failed. |
| Dishwasher drain hose | Amazon | Replace if the hose is collapsed, cracked, or permanently kinked and cannot be cleared. |
| Dishwasher check valve or drain valve | Amazon | Replace if the valve is stuck closed or shows physical damage preventing proper flow. |
Related Error Codes
If your appliance also shows a code on the display, these match this problem:
- Frigidaire Dishwasher I20 error code
- Frigidaire Dishwasher I30 error code
- Frigidaire Dishwasher I40 error code
- Frigidaire Dishwasher L0 L6 error code
- Frigidaire Dishwasher Loc error code
- Frigidaire Dishwasher Pf error code
When to Call a Pro
Call a pro if you have cleaned the filter, verified the hose and disposal connection, and inspected the drain pump but water still remains in the tub after a cycle. Also call if the pump motor shows no continuity and you are not comfortable with electrical diagnosis and replacement, or if your model requires access behind the control panel or use of diagnostic mode and you do not have the tech sheet.