Samsung Washer Error Code Hot&Small LED Flash

The Hot&Small LED Flash is a water supply error code indicating one of several possible faults: reversed hot and cold inlet hoses, water temperature exceeding the safe threshold for the selected cycle, foreign material in the supply valve filter, a disconnected valve terminal, or a loose PCB connector at the detergent drawer. The washer's control board monitors incoming water temperature and valve circuit continuity, and this code activates when readings fall outside acceptable parameters. Diagnosing the specific cause requires checking hose orientation, valve resistance, and all related electrical connections.

It is not recommended to continue running the washer while this code is active. The error indicates either a water temperature condition that could damage fabrics, particularly in Wool or Lingerie cycles, or an underlying electrical or mechanical fault with the water supply valve circuit. Running the machine in this state could worsen the fault or result in improper washing results. Address the cause before resuming normal use.

If the fix involves only reconnecting hoses or cleaning the inlet valve filter screens, there is no parts cost and the repair can typically be completed in under an hour without professional help. If the water supply valve coil has failed and needs replacement, parts alone generally range from 25 to 75 dollars depending on the specific model. Adding professional labor for diagnosis and valve replacement typically brings the total repair cost to somewhere between 100 and 200 dollars.

Start by turning off the washer and checking that the hot and cold water supply hoses are connected to the correct inlet ports on the back of the machine. Next, shut off the water supply, disconnect the hoses, and inspect the mesh filter screens inside the valve inlets for debris, cleaning them if needed. If the connections and filters look correct, use a multimeter to test the resistance of the water supply valve, which should read between 0.9 kilohms and 1.1 kilohms. Also confirm that the valve's electrical terminal and the PCB connector near the detergent drawer are fully plugged in.

A simple reset by unplugging the washer for a few minutes may temporarily clear the code, but it will return if the underlying cause is not corrected. Reversed hoses, a clogged valve filter, a failed valve coil, or a loose electrical connector will all re-trigger the fault on the next cycle. The reset should only be used after the root cause has been identified and resolved.