LG Dishwasher IE Error Code: What It Means and How to Fix It
Updated · from manufacturer service documentation
The IE error on an LG dishwasher means the water supply isn't reaching the machine — almost always a kinked water supply line pinched during installation, or the house water supply simply not turned on yet. Both are checkable without any tools beyond your hands.
What Causes the IE Error
| Cause | Likelihood | DIY difficulty | Related part |
|---|---|---|---|
| Water supply line kinked under the dishwasher | Most common | Easy — reroute line | Water supply line |
| House water supply not turned on | Common | Easy — turn on supply | — |
How to Fix the IE Error, Step by Step
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Check whether the water supply line is kinked under the unit
This is a documented installation issue: feed the supply and drain hoses through the hole under the sink, then gradually slide the dishwasher into the cabinet while pulling on the hoses from under the sink to take up slack — this avoids kinking the line or trapping it beneath the dishwasher.
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Confirm the house water supply is actually turned on
LG's own installation note for this code specifically calls out checking that the supply valve is open before assuming anything else is wrong.
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Run a Turbo cycle to confirm the fix
LG's final installation check runs the dishwasher on a Turbo cycle specifically to verify proper operation and check for leaks after resolving a water-supply issue.
Which Models This Applies To
Documented for the LG LDF5545ST / LDT7808ST dishwasher series. IE is one of two error codes LG explicitly calls out in its installation checklist, alongside OE (a drainage-side installation issue) — both point to the same root cause category (a kinked line), just on opposite sides of the water path.
See also: LG dishwasher OE. Full list: all LG dishwasher error codes.
Frequently Asked Questions
What does the IE error mean on an LG dishwasher?
It means the water supply isn't reaching the dishwasher — usually because the supply line is kinked under the unit, or the house water supply hasn't been turned on.
I just installed my dishwasher and it shows IE — what should I do?
Check that the water supply line isn't kinked under the dishwasher (feed the hoses through the hole under the sink and pull slack through as you slide the unit in), and confirm the house water supply valve is open.
Is IE the same kind of problem as OE?
Related but on opposite sides of the water path — IE is a water-supply-in issue, usually a kinked supply line; OE is a drainage-out issue, usually a kinked drain hose or a disposal/waste-tee knockout plug left in place. See the OE page for that checklist.
How do I confirm the fix worked?
Run the dishwasher on a Turbo cycle — LG's own final installation check uses this cycle specifically to verify normal operation and check for leaks.
Based on the LG dishwasher service documentation (LDF5545ST / LDT7808ST series). Last updated: .