When dacor dishwasher leak detection triggered on the display — LC on a Samsung-era Modernist unit, F-6 on a Legacy EDW/IDW model — both codes exist for the same reason: the dishwasher’s own leak-sensing system has detected water somewhere it should not be, and treating that alert with real caution matters more here than with almost any other code on this platform.
What each code specifically means
LC is documented as a leakage check on the Samsung-era platform, and Dacor’s own manual language directs an owner to shut off the water supply and the breaker once it appears. F-6 on the Legacy platform ties to the Aqua-Stop-style Floor Guard leak-detection system, a physical float or sensor beneath the tub designed specifically to catch water pooling in the base pan before it spreads.
The correct first response, regardless of era
Before doing anything else, shut off the water supply valve feeding the dishwasher and switch off power at the breaker, then check the floor around and beneath the unit for actual standing water. Restarting a cycle to “see if it happens again” risks compounding a genuine leak into water damage on the surrounding cabinetry or flooring, which is a meaningfully worse outcome than a delayed dish cycle.
What actually causes this alert
A failed door gasket, a cracked or loose hose connection at the water inlet valve, or, on a Legacy unit specifically, a genuinely tripped Floor Guard float switch from water that has already pooled are the most common causes. A false trigger from incidental condensation dripping onto the Floor Guard sensor is possible but less common than an actual leak, and it should not be assumed without first confirming there is no real water present.
Why this is not a code to reset and ignore
Unlike a code such as HC or a heating check, which describes an internal functional test, a leak alert describes water actively somewhere it should not be, and dismissing it without checking for standing water is the single riskiest response available for this specific code on either platform.
When to book service
Once water and power are off and any visible standing water has been addressed, an experienced technician can trace the source — door gasket, hose connection, or Floor Guard sensor — before the unit is run again. Our dishwasher error codes page covers LC and F-6 in full, and our dishwasher appliance page lists the current lineup. Schedule a visit as soon as water and power are secured. We are an independent repair service with no affiliation to Dacor or to Samsung, and the labor on every visit is covered for 30 days. Dacor’s own site lists current dishwasher water-supply and installation requirements.
