LG Dishwasher IE Error Code: Water Inlet Fault
Quick Answer
IE on an LG dishwasher means the tub did not fill to the required level within the timeout window. The most common cause is a kinked or bent supply hose behind the unit, followed by a partially closed water supply valve, and then a failed inlet solenoid valve. Before testing parts, always check that the water supply valve under the sink is fully open and that the inlet hose is not kinked.
IE on an LG dishwasher means the tub did not fill to the required level within the timeout window. The most common cause is a kinked or bent supply hose behind the unit, followed by a partially closed water supply valve, and then a failed inlet solenoid valve. Before testing parts, always check that the water supply valve under the sink is fully open and that the inlet hose is not kinked. If the water supply is confirmed good, test the inlet valve solenoid at 800-1500 ohms. Outside that range, the valve needs replacement.
What Does the IE Code Mean?
IE means no water fill detected. Check the supply valve under the sink is fully open, check the inlet hose for kinks, then test the inlet solenoid at 800-1500 ohms.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Symptoms You May Notice
- IE displayed after cycle starts
- Cycle starts but no water enters the tub
- Tub is dry when door is opened after IE appears
- Fill valve may click but no water flow is heard
Can you reset a Lg dishwasher to clear the IE code?
After correcting the water supply issue, unplug for 60 seconds and restart. If IE was caused by a closed valve or kinked hose, the fill cycle will complete normally. If the inlet valve was replaced, test with a short normal cycle.
Tools Required for Diagnosis
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
Open the cabinet under the sink and locate the water supply
Open the cabinet under the sink and locate the water supply valve for the dishwasher. Confirm it is fully open (turned counterclockwise to the stop). Turn it fully closed and then fully open again to ensure it is not stuck partially closed.
Pull the dishwasher forward slightly and visually inspect the
Disconnect power and shut off water supply
Replacement Parts
If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.
| Part Name | OEM Number | Estimated Price |
|---|---|---|
| Water Inlet ValveAJU72992601 · $25–$42 | AJU72992601 | $25 – $42 |
Repair vs. Replace Calculator
Frequently Asked Questions
What resistance should the LG inlet valve solenoid read?
Can hard water cause LG IE errors?
Related Lg Dishwasher Error Codes
Same Fix Works on These Brands
Lg shares the same hardware platform with these brands. The diagnosis and repair steps are identical.
Models Known to Experience IE Errors
This repair applies to most Lg dishwashers with this error code. Common model numbers include:
LDFN4542D, LDF5545ST, LDFS5788S, LDP6763ST, LDFN3432T, LDFN4542S, LDFN4542W
Last verified for technical accuracy on March 14, 2026