LG FE
Fill Error (Overfill)
High severityExpert Guide
SeverityHigh
What Your Machine Is Actually Telling You
FE means the water level exceeded the maximum safe threshold. LG's overflow sensor detected dangerously high water. The machine will try to drain immediately.
This is an emergency code. Water is entering when it shouldn't be.
Common causes:
1. Inlet valve stuck open (35%) — solenoid jammed mechanically.
2. Pressure sensor fault (20%) — false reading allowing overfill.
3. Main board valve relay (10%) — relay stuck ON.
4. Siphoning (10%) — drain hose pulling water back in.
5. Excessive suds (10%) — foam confusing level readings.
6. Pressure tube issue (10%) — clogged tube giving wrong data.
7. Previous drain failure (5%) — residual water from last cycle.
This is an emergency code. Water is entering when it shouldn't be.
Common causes:
1. Inlet valve stuck open (35%) — solenoid jammed mechanically.
2. Pressure sensor fault (20%) — false reading allowing overfill.
3. Main board valve relay (10%) — relay stuck ON.
4. Siphoning (10%) — drain hose pulling water back in.
5. Excessive suds (10%) — foam confusing level readings.
6. Pressure tube issue (10%) — clogged tube giving wrong data.
7. Previous drain failure (5%) — residual water from last cycle.
What You're Probably Seeing Right Now
- Water level is visibly high through the door.
- Machine is draining continuously.
- Water still entering despite the error.
- Water has leaked onto the floor.
DIY Fix — From Easiest to Hardest
1
Turn Off Water Supply (Immediately)
1. Close BOTH water taps behind the washer.
2. This stops water entry.
3. Let the machine drain the excess.
2. This stops water entry.
3. Let the machine drain the excess.
2
Check for Siphoning (3 minutes)
1. Check the drain hose at the standpipe.
2. Hose should NOT be submerged in water.
3. Needs air gap at the connection.
4. Height: 24-36 inches above floor.
5. Insertion: 6-8 inches max into standpipe.
2. Hose should NOT be submerged in water.
3. Needs air gap at the connection.
4. Height: 24-36 inches above floor.
5. Insertion: 6-8 inches max into standpipe.
3
Test Inlet Valve (5 minutes)
With taps closed:
1. Unplug machine.
2. Open taps — does water still enter the machine?
3. **Yes** = valve stuck open, replace ($25-60).
4. **No** = electrical issue (relay stuck).
1. Unplug machine.
2. Open taps — does water still enter the machine?
3. **Yes** = valve stuck open, replace ($25-60).
4. **No** = electrical issue (relay stuck).
4
Check Pressure Sensor (10 minutes)
1. Access sensor (top panel off).
2. Check tube for clogs.
3. Blow test — should hear click.
4. Replace if faulty ($20-40).
2. Check tube for clogs.
3. Blow test — should hear click.
4. Replace if faulty ($20-40).
When to Call a Pro
- •Inlet valve stuck open — $80-$200 installed.
- •Main board relay — $150-$400.
- •Water damage — if it reached electronics.
- •Turn off taps until fixed.
What It'll Cost You
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