Match the symptom, then work through the safe checks.
1. What best matches what you observe?
2. Complete only the checks that are safe for you.
Show stop conditions
- 9C2 keeps returning after power conditions normalize
- The outlet or cord is loose, damaged, hot, or discolored
- Live electrical measurements would be required
Likely causes
- Incoming mains voltage has dropped below the washer's expected range
- A brownout, weak circuit, loose supply connection, or overloaded branch circuit is causing voltage drop
- An extension lead or multi-adapter is adding resistance or sharing load with another high-power appliance
- The washer's power-input electronics need diagnosis if the household supply is normal
Quick checks, in order
Confirm the plug is fully seated
Check the washer power cord and wall plug for a firm connection without using an extension lead or multi-adapter.
Remove other heavy loads from the circuit
If practical, avoid running heaters, dryers, or other large appliances on the same circuit while checking whether 9C2 returns.
Retry after supply conditions stabilize
If there was a brownout or outage, wait until power is stable, then power-cycle the washer once and retry.
Arrange electrical/service diagnosis if persistent
Persistent 9C2 on a proper supply needs safe verification of the building supply and then model-specific washer power-input diagnosis.
Is the washer actually receiving stable line voltage when 9C2 appears?
The problem may be the building or utility supply rather than the washer. Stop repeated washer tests until the supply is stable.
Move the washer back to its intended direct wall connection and avoid the unsuitable shared setup.
The washer's input-power sensing or control electronics require model-specific service diagnosis.
Stop and get qualified help when
- 9C2 keeps returning after power conditions normalize
- The outlet or cord is loose, damaged, hot, or discolored
- Live electrical measurements would be required
Official support and model manuals
Use the full model number from the rating label. The manufacturer manual is the deciding reference when codes differ by region or product family.
Frequently asked questions
Does Samsung 9C2 mean low voltage?
Yes on supported Samsung washer families. Samsung's Active DualWash guidance specifically labels 9C2 as low voltage, while broader Samsung guidance groups it with supply-voltage errors.
Is 9C2 the same as 9C1?
They belong to the same voltage-error family, but Samsung model-specific guidance distinguishes 9C1 as over-voltage/electronic-control and 9C2 as low voltage.