How to Fix the Frigidaire Dishwasher i30 Error Code

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Introduction

Use this guide to clear the i30 error code on a Frigidaire Gallery dishwasher. The i30 code can appear when water collects in the drain pan under the dishwasher and lifts the styrofoam float. When that float rises, the dishwasher may keep the pump running to prevent water from overflowing into the kitchen. This can happen alongside an i20 code, especially if the dishwasher overfilled or didn't drain properly.

What you need

Step 1 Power down the dishwasher

Turn off power to the dishwasher before working on it.
Unplug the dishwasher or switch off the dishwasher circuit breaker so the unit can't turn on while you work.
Shut off the water supply before disconnecting any water line.

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Step 2 Disconnect the unit if needed

Disconnect the water supply line and drain line if you need to pull the dishwasher out from under the cabinets.
Use the proper tools for the plumbing connections on the dishwasher if the lines don't disconnect by hand.
Keep the drain line aimed into the sink or a safe drain area if it still contains water.

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Step 3 Remove the filter and cover

Open the dishwasher and remove the filter and its cover from the bottom of the tub.
Remove any standing water from inside the dishwasher before working under the unit.
Draining the tub first helps prevent water from running back into the base and making you repeat the repair.

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Step 4 Check for an i20 code

Look for an i20 code if it appeared with the i30 code.
An i20 code can point to a draining problem that may have caused the dishwasher to overfill and fill the drain pan.
Clear any remaining water in the tub before continuing, especially if the dishwasher had an i20 code.

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Step 5 Move the side insulation

Find the insulation on the side of the dishwasher near the base.
Lift the insulation out of the way by releasing it from the clips that hold it in place.
Avoid tearing the insulation so it can be clipped back into place during reassembly.

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Step 6 Inspect the drain pan and float

Look into the drain pan beneath the dishwasher for standing water.
The drain pan is designed to catch overflow before it reaches the kitchen floor.
Water in the pan can lift the styrofoam float and trigger the i30 code.
The dishwasher pump may keep running while the float is raised.

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Step 7 Dry the drain pan

Use a shop vac or paper towels to remove the water from the drain pan.
Dry the pan as well as you can so the styrofoam float can drop back down.
Make sure no standing water remains around the float before reassembling the dishwasher.

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Step 8 Reassemble the dishwasher

Clip the side insulation back into place.
Reinstall the filter cover and filter in the bottom of the dishwasher.
Reconnect the water supply line and drain line if you disconnected them.
Turn the water supply back on and check the connections for leaks.

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Step 9 Restore power and test the dishwasher

Restore power to the dishwasher.
Run the dishwasher and confirm the i30 code is cleared and the pump no longer keeps running.
If the i30 code returns, check for the source of the leak or overflow before continuing normal use.
If an i20 code returns, troubleshoot the draining problem before clearing the drain pan again.

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Conclusion

The i30 code should clear once the drain pan is dry and the float drops back down. If the code returns, the dishwasher may still be leaking, overfilling, or failing to drain correctly. Repair didn't go as planned? Ask our Answers community for help.

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