If your LG dishwasher won’t start, displays error codes like IE, OE, FE, or leaves water behind—it’s frustrating. This hands-on guide walks you through clear, practical fixes based on LG’s support and expert sources.
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1. Dishwasher Won’t Start
Common reasons an LG dishwasher won’t turn on:
- Power Interruption (PF code): A power failure resets the cycle. Press Power or Start to resume, or reset via circuit breaker.
- Child Lock / Control Lock (CL): Prevents operation. Hold the lock button for 3–5 s to disable.
- Door Latch Fault or Leveling: If the door doesn’t latch properly or unit is unlevel, the appliance won’t start. Inspect latch and check leveling.
2. Water Filling Error – IE / 1E Code
When your dishwasher shows IE or 1E, it means it’s not getting sufficient water:
- Ensure the inlet valve is open and water pressure is at least 20 psi. ([turn0search0])
- Check for kinks or blockages in the water hose. Straighten or replace as needed. ([turn0search0] [turn0search2])
- Clean inlet filter screen if present. Make sure hoses are properly installed and not frozen in cold installations. ([turn0search2] [turn0search0])
3. Dishwasher Won’t Drain – OE Code
An OE code indicates drainage failure:
- Clean the drain filter and basket regularly. Debris can block flow. ([turn0search1] [turn0search2])
- Check drain hose under sink for kinks, clogs, or improper high-loop installation. Flush hose if needed. ([turn0search0] [turn0news23])
- If garbage disposal is connected, ensure knockout plug has been removed. ([turn0search0] [turn0news23])
- If issues persist after cleaning, the drain pump may need replacement. ([turn0search2] [turn0search6])
4. Overflow or Leak – FE / AE / F1 Codes
Error codes FE or AE signal water overflow or leakage:
- Check door gasket for damage or debris. Clean and reseat if necessary. ([turn0search17] [turn0search18])
- Ensure the drain pump and inlet valve aren’t stuck open or leaking. ([turn0search2] [turn0search18])
- Make sure dishwasher is level. Unlevel units can leak or misread water sensors. Adjust front and rear feet as needed. ([turn0search17] [turn0search0])
- Avoid over-sudsing. Only use dishwasher detergents—not dish soap. Suds can cause overflow. ([turn0search2] [turn0news23])
5. Motor Errors – LE / E9 / NE
The LE code points to motor overload or blockage:
- Check for obstructed spray arms or overloading that prevents motor rotation. Redistribute dishes. ([turn0search2] [turn0search6])
- If noise or motor fault persists, motor or circuit board may need servicing. ([turn0search6] [turn0search18])
6. Heating or Thermistor Issue – HE / tE / E1 Codes
Error codes HE, tE, or E1 relate to water temperature problems:
- Run hot water at sink before starting the cycle to ensure adequate incoming temperature. ([turn0search2] [turn0search18])
- If problem continues, heating element or temperature sensor may be faulty and require replacement. ([turn0search2] [turn0search18])
7. Panel or Interface Issues – bE / DE Errors
If bE or DE shows, there’s a control panel fault:
- Check for stuck buttons or moisture on the control panel. Dry and clean contacts. ([turn0search18] [turn0search6])
- Try a reset by disconnecting power for 10–15 minutes. ([turn0search18] [turn0search6])
- If unresolved, control panel or main board may need replacement. ([turn0search18])
8. Mid-Cycle Stop or Flickering Lights
If your cycle stops suddenly and lights flicker:
- It may be a power interruption or board error—try a full reset. ([turn0search13] [turn0search2])
- Ensure no loose wiring under kick plate. A loose connection can interrupt power mid-cycle. Secure connectors if needed. ([turn0search13])
🛠 Quick LG Error Code Reference Table
| Error / Symptom | Meaning | DIY Fix |
|---|---|---|
| IE / 1E | No water fill | Open supply valve, straighten hose, clean inlet screen |
| OE | Drain issue | Clean filter, flush or reposition drain hose, check pump |
| FE / AE | Overflow or leak | Inspect gasket, level unit, reduce suds |
| LE / E9 / NE | Motor overload/fault | Clear blockages, redistribute load |
| HE / tE / E1 | Heating failure | Preheat water, check sensor or element |
| bE / DE | Control panel fault | Dry panel, reset power, replace board if needed |
| PF | Power fail detected | Reset breaker, press Start or Power |
| CL | Child lock active | Hold lock button 3–5 s |
Maintenance & Preventive Tips
- Monthly filter/spray arm cleaning: Prevent food clogs and buildup. ([turn0search1] [turn0news21])
- Vinegar cleaning cycle: Run a cycle monthly with white vinegar to dissolve residue. ([turn0search1] [turn0news21])
- Straighten drain hose loop: Maintain a high loop above cabinet level or air gap it to prevent siphoning. ([turn0search0] [turn0news23])
- Proper loading and detergent: Don’t overload and use only dishwasher-safe detergent. ([turn0search2] [turn0news23])
- Ensure level installation: Use a level tool to check and adjust dishwasher feet for correct alignment. ([turn0search17] [turn0search0])
Halfway Tune-Up Tip
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When to Call a Technician
- Error codes persist after basic resets and cleaning.
- Motor, heating elements, or inlet valve faults are suspected.
- Control board or panel replacement needed.
- Leaks continue after gasket or float switch inspection.
Conclusion
Most LG dishwasher issues—from fill failures (IE), drainage errors (OE), heating faults (HE), or motor issues (LE)—can often be solved with proper cleaning, resets, and simple inspections. Error codes provide valuable clues, so use the table above to match the display. For deeper mechanical or electrical faults, professional service is the safest option.
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