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ErrBase

Samsung Washer 9C2 Error Code: Low Supply Voltage Fault

Quick Answer

9C2 means Samsung's washer detected low voltage at the power supply input. The machine requires 108-132V AC at the outlet. Voltage below that threshold triggers 9C2 because the motor drive cannot generate the correct drive current for the brushless motor.

9C2 means Samsung's washer detected low voltage at the power supply input. The machine requires 108-132V AC at the outlet. Voltage below that threshold triggers 9C2 because the motor drive cannot generate the correct drive current for the brushless motor. Check the outlet voltage, verify the circuit breaker, and test on a different outlet before suspecting the main control board.

SamsungWasherSeverity: highDifficulty: advanced80% DIY Success
Time to Fix
30–120 min
Difficulty
advanced
Parts Cost
$200 – $350
Tools Needed
Multimeter, Phillips screwdriver

What Does the 9C2 Code Mean?

9C2 is in the same power-supply fault family as 9C8. 9C8 is a frequency problem; 9C2 is a voltage level problem. Both can be caused by a failing main control board or by actual utility supply issues.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Supply voltage at the outlet below 108V AC40%
Circuit breaker tripping partially (one leg of 240V circuit)24%
Main control board failing and generating a false low-voltage reading22%
Long extension cord creating excessive voltage drop14%

Symptoms You May Notice

  • 9C2 code at power-on or during spin
  • Machine will not start any cycle
  • Machine works intermittently depending on household power load

Can you reset a Samsung washer to clear the 9C2 code?

Unplug for 60 seconds after resolving the voltage or board issue. 9C2 will not clear on a reset alone if the underlying cause is still present.

Tools Required for Diagnosis

MultimeterPhillips screwdriverTorx T20 screwdriver

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Test the outlet voltage with a multimeter set to AC voltage

Test the outlet voltage with a multimeter set to AC voltage. Expected: 108-132V. Test while the washer is plugged in and attempting to run a cycle, as voltage can drop under load.

2

Confirm the washer is plugged directly into a wall outlet

3

Try the washer on a different 20-amp circuit in the home

4

Replace main control board DC92-01803A if all power supply

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Main Control BoardDC92-01803A · $200–$350

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
BORDERLINE
Estimated Cost: $275 (Parts) vs $750 (New Machine)

Frequently Asked Questions

What is the difference between 9C2 and 9C8 on a Samsung washer?
9C2 is a low voltage fault; 9C8 is a power frequency fault. Both are power supply problems but they measure different parameters. 9C2 means the voltage is too low; 9C8 means the frequency is not the expected 60 Hz.
Can a partially tripped breaker cause 9C2?
Yes. A breaker that has partially tripped can supply reduced voltage without appearing fully off. Check the breaker by pushing it fully to the off position and back to on. If the outlet voltage comes back to normal, the breaker was the problem.

Related Samsung Washer Error Codes

Code: 9C8Samsung Washer 9C8 Error Code: Power Frequency FaultCode: AC6Samsung Washer AC6 Error Code: Motor Communication Fault

Same Fix Works on These Brands

Samsung shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Samsung washerSamsung Washer 3C2 Error Code: Motor StallSamsung washerSamsung Washer 3E Error Code: Motor FaultSamsung washerSamsung Washer 4C Error Code: No Water SupplySamsung washerSamsung Washer 4E Error Code: Water Supply Fault (Top Load)Samsung washerSamsung Washer 5C Error Code: Drain Error (Older Display)Samsung washerSamsung Washer 8C Error Code: Vibration Sensor Fault

Models Known to Experience 9C2 Errors

This repair applies to most Samsung washers with this error code. Common model numbers include:

WF45R6100AW, WF45T6000AW, WF45R6300AW, WF50R8500AV, WF45H5200AW

Last verified for technical accuracy on March 14, 2026