Samsung Washer Error Code C6

C6 on a Samsung washer indicates a power supply fault where the voltage delivered to the machine is either too low or too high for safe operation. The washer monitors its supply voltage continuously and will stop the cycle and display C6 when it detects an out-of-range condition. The issue can originate from the home's electrical supply or from an internal component that handles power regulation.

No, you should not continue using the washer while C6 is active. Both undervoltage and overvoltage conditions can cause overheating of motors and heating elements or damage to control boards and other electronics. The washer stops automatically to prevent this damage, and running it under abnormal voltage conditions risks both appliance failure and potential electrical hazards.

Repair costs for C6 vary widely depending on the root cause. If the issue is limited to the home wiring or outlet, electrician costs typically range from $75 to $250 or more depending on the scope of work. If an internal power supply board requires replacement, parts and labor combined can range from $150 to $400 or higher. A proper diagnosis identifying whether the fault is external or internal is necessary before estimating repair costs.

Some causes of C6 can be addressed without professional help, such as ensuring the washer is plugged directly into a properly rated dedicated outlet and not using an extension cord. However, diagnosing whether the problem is internal requires connecting a tester to the internal power terminals during a Boil or Dry cycle, which involves working with live electrical components. If internal testing is required, a qualified technician should perform the work.

Resetting the washer by unplugging it for a few minutes may temporarily clear the C6 code, but the error will return if the underlying voltage problem has not been resolved. A reset does not fix the root cause. If the voltage condition is intermittent, the machine may operate normally for a period before the fault reappears.