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LG·dishwasherhigh severity
LG dishwasher Error Code CE
Communication error between the door display module and the main control board
Common Causes
- 1Loose serial connector between the door display and the base board
- 2Door-edge harness cracked by repeated opening
- 3Failed door display module
- 4Failed base control board
Step-by-Step Troubleshooting
- 1
Power the LG dishwasher off at the breaker for a full minute so the door display and the base board re-handshake on restart
- 2
Open the door outer panel and reseat the serial connector between the LG display module and the base control board
- 3
Follow the harness along the door edge and flex it to expose a conductor cracked by repeated door movement
- 4
Check both board headers for corrosion or scorching on the communication pins before condemning a board
- 5
Run LG Smart Diagnosis from the ThinQ app to hear which end reports the lost link, then replace the display module first
Pro Diagnostic Tip
LG dishwashers split the control between a door display module and a base board, so a CE that only appears once the door has cycled a few times is the door harness flexing open — confirm with Smart Diagnosis before ordering either board.
You Might Also Notice
- •Cycle stops with the display frozen
- •Panel unresponsive after starting
- •Random mid-cycle shutdowns
- •Error clears on a power cycle then returns
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$150–$340
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Door display moduleDoor-edge wiring harnessBase control board
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
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Error code CE is a high-severity issue that can cause further damage to your dishwasher if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does LG error code CE mean?
LG error code CE indicates: Communication error between the door display module and the main control board. This is a high-severity issue affecting your dishwasher.
How do I fix LG error code CE?
Power the LG dishwasher off at the breaker for a full minute so the door display and the base board re-handshake on restart Then, Open the door outer panel and reseat the serial connector between the LG display module and the base control board Then, Follow the harness along the door edge and flex it to expose a conductor cracked by repeated door movement There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my dishwasher has error CE?
Besides the error code on the display, common signs include: Cycle stops with the display frozen; Panel unresponsive after starting; Random mid-cycle shutdowns. If you notice any of these symptoms, check your dishwasher's display panel for error code CE.
How much does it cost to fix LG CE?
Repair costs for LG CE typically range from $150 to $340 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.
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