Samsung Washer Error Code Hot&Cold LED Flash

The simultaneous flashing of the Hot and Cold LEDs on a Samsung washer signals a fault in the motor drive circuit or the TMR tachometer sensor circuit. The washer's control board has detected that the motor is not operating correctly, which prevents the drum from spinning. Causes range from a disconnected connector or loose sensor terminal to a damaged motor coil or mechanical obstruction inside the motor housing.

You should not continue running the washer when this error is active. The motor is not functioning properly, and running the appliance could worsen an existing coil fault, cause additional electrical damage to the control board, or allow a mechanical problem to escalate. Diagnose and resolve the issue before resuming normal use.

A power reset may temporarily clear the error display, but the fault will return if the underlying problem is not resolved. If the issue is a disconnected terminal that reseats itself during movement, the error may not immediately reappear, but an overloaded motor, damaged coil, or faulty TMR sensor connection will continue to trigger the code on subsequent cycles. A proper physical inspection of the motor and its connections is necessary for a lasting fix.

Some causes of this error are DIY-friendly, particularly checking and reseating disconnected or loose connector terminals at the motor and PBA, and clearing any foreign material from inside the motor. However, diagnosing a short-circuited or open motor coil requires a multimeter and some electrical knowledge, and replacing a damaged motor is a more involved repair that may be better handled by a technician.

Repair costs vary widely depending on the root cause. If the fix is simply reseating a loose connector or removing debris from the motor, costs may be minimal or limited to a service call fee in the range of $75 to $150. Motor replacement is significantly more expensive, typically ranging from $200 to $450 or more depending on the specific model and labor rates in your area.