Samsung Washer Error Code Hot&Large LED Flash

The Hot&Large LED Flash error indicates a door locking failure. After the door was closed, the washer could not confirm that the door lock engaged successfully. This is caused by a faulty door lock switch, a terminal connection problem, wiring issues, or in rare cases a main PCB fault. The washer will not operate until the door locking condition is resolved.

No, you should not attempt to run the washer while this error is active. The door lock fault means the control system cannot confirm the door is secured, and the washer is designed to prevent operation in this state. Attempting to bypass this condition could be unsafe and may cause further damage to the control system or wiring.

A reset may temporarily clear the error display, but if the underlying fault in the door lock circuit is still present, the error will return as soon as the washer attempts to lock the door again. A reset is useful for confirming whether the fault is intermittent, but it is not a fix. The door lock switch, wiring, and connections need to be inspected and repaired to resolve the error permanently.

In many cases, yes. Start by checking that the door lock switch unit connector is fully inserted and that the switch shows no visible damage. If a terminal is loose or a wire is visibly damaged, those are repairs a knowledgeable DIYer can address. If the switch unit itself has failed internally, replacing it is a moderately straightforward repair, though working inside the washer cabinet does require comfort with basic appliance disassembly.

If the fix is a reseated or replaced connector, the cost may be minimal, mainly your time. A replacement door lock switch unit typically costs in the range of $20 to $60 for the part. If a wiring harness section needs replacement, costs can range from $30 to $100 or more depending on the harness. Main PCB replacement is the most expensive possibility, often ranging from $150 to $350 or higher for parts alone, plus any labor costs if a technician is involved.