FE2
LG Dishwasher
Severity: CriticalWhat Does This Error Mean?
The FE2 error means your LG dishwasher has detected a secondary overflow condition. This is a follow-on to the standard FE overflow error. The tub has overfilled or the overflow sensor has been triggered a second time.
Affected Models
- LDF5545ST
- LDT5678SS
- LDFN4542D
- Select LG built-in dishwasher models
Common Causes
- The water inlet valve is stuck open and not shutting off after filling
- The water level sensor has failed and is giving incorrect fill readings
- The float switch inside the tub is stuck in the down position
- A previous FE error was not fully resolved before restarting the machine
- The main control board is not sending the signal to close the inlet valve
How to Fix It
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Stop the dishwasher immediately and shut the water supply valve under the sink.
This prevents any more water from entering the machine.
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Open the door carefully and remove any standing water with towels or a sponge.
Water may overflow when the door opens — protect your floor.
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Check the float switch at the bottom of the tub — usually at the front corner.
It should move up and down freely. If it's stuck down, water flow won't stop. Clear any debris around it.
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Unplug the dishwasher and wait 15 minutes before any further action.
This resets the water level sensor and control board.
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If FE2 appears again after a reset, call a technician immediately.
A stuck inlet valve or failed water level sensor will cause flooding if not replaced.
When to Call a Professional
FE2 means the overflow protection has triggered twice — this is serious. Do not restart the dishwasher until a technician has inspected it. Inlet valve or water level sensor replacement costs $100–$280. Continued use risks flooding the kitchen floor.
Frequently Asked Questions
What is the difference between FE and FE2 on LG dishwashers?
FE is the initial overflow or overfill detection. FE2 means the same overflow condition occurred again after a reset. FE2 is a stronger signal that the root cause was not resolved.
Can I reset FE2 and keep using my dishwasher?
We strongly recommend against it. FE2 means the overflow protection has triggered multiple times. Without fixing the underlying cause, the next cycle could flood your kitchen.
How do I check if my water inlet valve is stuck open?
Shut the water supply valve under the sink. If water is still entering the dishwasher after you do this, the inlet valve is stuck. This requires a technician to replace.