The i30 fault points to water in the base tray; dry the tray, find the leak, and the nonstop drain cycle will stop.
Seeing an i30 message while the unit keeps humming can be nerve-wracking. In most cases, the machine is doing exactly what it should: protecting your kitchen. That nonstop drain sound is the safety system running the pump because water was detected in the chassis base. Clear the water, track the source, and the dishwasher will power down normally again.
Quick Diagnosis Map: Symptoms, Likely Causes, First Steps
This quick map helps you jump to the right fix path fast. Use it first, then scroll for detailed steps and checks.
| Symptom You See | Most Likely Cause | What To Try First |
|---|---|---|
| Pump runs endlessly with i30 showing | Water in base tray tripped leak float | Kill power, drain/dry base tray, restart |
| Stops mid-cycle, then constant drain | Internal leak or splash into base | Check door gasket, sump seal, spray arms |
| i30 returns hours after reset | Slow seep at hose, valve, or tub seam | Run with panels off, watch with flashlight |
| Foamy water near door bottom | Oversudsing from soap or rinse aid spill | Rinse, clean filter, rerun Normal with no soap |
| After disposer install, code appears | Disposer knockout not removed | Remove plug, re-seat drain hose |
| Unit not level, door drips | Forward tilt causing splash leaks | Level cabinet front-to-back and side-to-side |
| Starts to fill, then drains and errors | Pressure/air trap dirty or sensor stuck | Clean pressure chamber and sensor port |
What The I30 Code Actually Means
On these platforms, i30 signals that moisture reached the base pan and raised the internal float. The control then switches to a protective drain routine and keeps the pump running. Until the base is dry and the trigger clears, the display can persist and the machine may refuse a normal start.
In plain terms: there is either active leakage, recent spillage into the chassis, or a stuck/dirty sensor reporting “water present.”
Safety And Prep Before You Touch Anything
- Cut power at the breaker or unplug. You want a true power-off, not just “Cancel”.
- Shut the water supply valve under the sink.
- Have towels or absorbent pads ready. A small tray of water in the base can drain out when you tip the unit.
- If built-in, remove the toe-kick and mounting screws so you can slide the machine forward.
Clear The Flood Trigger So The Pump Stops
Method A: Tilt And Drain The Base Tray
With power off and water valve closed, slide the dishwasher out a few inches. Gently tip it forward about 30–45°. Any water pooled in the base will run toward the front; catch it with towels. Return the unit upright, reinstall loosely, restore power, and try a short cycle. If the display clears and the pump stops, you confirmed a water-in-base condition.
Method B: Dry The Tray From The Front
Remove the toe-kick. Use a long towel or sponge to wick out moisture from the chassis floor. A small fan aimed at the opening helps evaporate residual moisture. Once dry, restore power to confirm the code clears.
If the code returns, there’s an ongoing leak or a sensor/pressure path issue. Move on to the source hunt below.
Find The Source: Common Leak Paths And Fixes
Door Gasket And Lower Sweep
Open the door and inspect the perimeter gasket. Look for nicks, flattened spots, or food stuck at the corners. Check the lower sweep along the door bottom for tears. Clean the channel and seal with warm water and a cloth. Replace worn seals. A small bow in the door can also cause splash at the lower corners; leveling the tub often helps.
Sump, Filter, And Fine Screen
Remove the filter and glass trap. Rinse both. Shine a light into the sump. Debris piled at the sump lip can let water shoot under the tub deck and into the base. Reseat the filter fully and ensure the screen locks in place; if not seated, spray rebounds and leaks grow over time.
Spray Arms And Over-splash
Cracked spray arms jet sideways and hammer the door or side seams. Spin each arm by hand. If a tip is split or a jet is missing its cap, replace the arm. Overloaded items that stick through the lower rack can deflect spray toward the door as well.
Drain Hose And Disposer Knockout
Trace the drain hose from the dishwasher to the sink drain or garbage disposer. Make sure it climbs to a high loop under the counter. If a disposer was recently added, confirm the knockout plug inside the disposer inlet is removed. A plugged inlet sends water back toward the tub, which can seep into the base pan during drain pulses.
Inlet Valve Dribble
With the water turned back on and the unit in fill, watch the inlet valve and line for tiny beads. A valve that doesn’t seal may let water creep in between cycles, raising tub level and tripping the float. Replace a valve that drips when the machine is idle.
Leveling And Install Fit
Check front-to-back and side-to-side level. A forward tilt encourages splash past the lower seal and pooling at the front corners. Adjust the feet until the door meets the gasket evenly and racks don’t roll on their own.
When The Pump Still Runs: Sensor And Pressure Path Checks
Float Switch Free Movement
Many models use a foam float or micro-switch in the base. With the toe-kick off and power disconnected, find the float and lightly lift it; you should feel smooth travel. If it sticks, clean away film and grit. Replace a switch that doesn’t click or that tests open/closed intermittently.
Pressure Chamber / Air Trap Cleaning
Some platforms read water level via a pressure sensor connected to a small chamber on the tub. Grease and fines clog the port and trap pressure, fooling the control into “overfill” or “still full.” Remove the sensor, swab the port, and flush the chamber with warm water. Refit the hose snugly so it’s airtight. After cleaning, many ghost i30 returns disappear.
Control And Reset Behavior
Once the base is dry and sensors read normal, restore power. If the panel still shows i30 or the drain motor starts at idle, perform a hard reset at the breaker for five minutes and retry a short cycle. If the code persists with a bone-dry base and known-good sensor, you’re likely looking at a wiring or control fault.
Close Variant: Fixing A Frigidaire I30 Fault That Keeps Draining
This section focuses on the exact steps to stop the endless drain routine and keep it from coming back.
Step-By-Step To Stop The Endless Drain
- Power off at breaker. Turn water supply off.
- Pull the machine forward a few inches. Tilt to drain the base tray, or wick moisture through the toe-kick opening.
- Power up and test a short rinse. If clear, the trigger was water in the base; move to leak-find steps.
- If the pump starts again, clean the float and the pressure sensor port. Re-test.
- Inspect for active seep: run a rinse with the side panels or toe-kick off, flashlight ready. Look at door corners, sump rim, hose joints, inlet valve, and pump housings.
Lasting Fixes That Prevent A Repeat
- Replace worn door seals and a warped lower sweep.
- Swap cracked spray arms; keep jets clear.
- Install a proper high loop on the drain hose; remove a disposer knockout if present.
- Level the cabinet; avoid forward pitch.
- Clean filters weekly if you cook often; empty the glass trap before it piles up.
- Use only dishwasher detergent; wipe any rinse-aid spills right away to avoid foaming leaks.
Parts You Might Touch And How To Check Them
Only dig this deep if the quick steps didn’t resolve it. A multimeter and a good light help. If wiring, live tests, or pulling the unit feels out of scope, schedule professional service.
| Part/Area | How To Check | What Fix Looks Like |
|---|---|---|
| Leak Float / Micro-switch | Lift float; verify smooth travel and switch click. Meter for continuity change. | Clean debris; replace switch if no continuity change. |
| Pressure Sensor & Port | Remove sensor; inspect for sludge in the port or hose. | Flush port; clean/replace sensor if readings don’t change with pressure. |
| Inlet Valve | Watch for drips when idle; meter coil resistance per service data. | Replace valve that seeps or reads open/short. |
| Drain Hose & High Loop | Confirm ≥32″ rise under counter; check for kinks or pinholes. | Re-route to high loop; replace damaged hose. |
| Door Gasket / Lower Sweep | Inspect for tears, flat spots, or gaps at corners. | Clean channel; replace worn seals. |
| Spray Arms | Check for cracks, missing caps, or blocked jets; spin freely. | Replace damaged arms; clear jets. |
Run Checks That Prove You Fixed It
- Dry base confirmation: After your repair, leave the toe-kick off and shine a light into the base while running a short rinse. No beads or drips should appear.
- Door seal test: Place a dry paper towel at each lower corner and run a rinse. Towels should stay dry.
- Overnight idle: Turn water back on and leave the machine idle overnight. If i30 greets you in the morning, the inlet valve may be seeping or a slow drip is still present.
Care Habits That Keep I30 Away
- Rinse big scraps; don’t grind them in the filter.
- Clean the filter and glass trap regularly; reseat both fully.
- Use the right detergent dose; avoid hand soap. Wipe any rinse-aid spills from the door cup.
- Keep a proper high loop on the drain hose after any plumbing change.
- Re-level after floor work or if the unit was moved.
When To Call Service
Call in a pro if you find a cracked tub, a warped door, repeated i30 returns with a clean, dry base, or wiring damage. Slow, hidden seeps at pump housings and manifold joints can take time and dye tracing to verify. If you prefer official guidance while you troubleshoot, refer to the manufacturer’s leak tips and code notes:
One-Page Action Plan
- Power off and shut water. Drain or dry the base tray.
- Confirm clear panel and normal start.
- If the code returns, clean the float and pressure sensor port.
- Run a rinse with panels off; watch for drips at door corners, sump, hoses, inlet valve, and pump joints.
- Fix what you spot: seals, spray arms, hose routing, valve, or leveling.
- Retest with base visible; verify a dry overnight idle.
FAQ-Style Clarifications (No Fluff)
Will A Hard Reset Alone Fix It?
Only if the base was already dry or the sensor was a false trip. If there’s real moisture, the code returns.
Can Oversudsing Trigger The Fault?
Yes. Soap foam pushes past the lower door area, drips into the base, and triggers the float. Clean the filter, run a rinse with no detergent, and switch to the correct product.
Why Does The Pump Run With The Door Open?
Once the leak safety routine starts, the control commands a drain until the trigger clears. That’s expected behavior during a flood condition.
What If I See No Leaks Anywhere?
Then suspect the pressure chamber or the float switch sticking. Clean the chamber and port, verify the float’s free movement, and test the switch.