Samsung dryer 9C1: Supply-voltage warning

Documentation checkedBy ErrHiveUpdated October 28, 2026

THE SHORT ANSWER

Supply-voltage warning.

9C1 is a dryer voltage warning. Check the installation and any stacked MultiControl context before assuming a failed dryer.

First safe check

Confirm the dryer is on its specified circuit without an extension cord.

Applies to

Samsung dryer families covered by the cited US guidance. Match the full model number and exact display; this is not an exact-model compatibility claim.

Before you start

Do not bypass the door switch, run with disconnected exhaust, or open electrical or gas components. Stop for smoke, scorching, or a gas odor.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

The dryer displays 9C1.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 2 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

Check the visible power arrangement
Do not open the terminal block. Have an installer or electrician verify a questionable cord installation or supply.
What to note
Power requirements are checked safely.
Check stacked-control timing
If a washer reports the dryer’s 9C1 immediately after power-on through a MultiControl kit, check Samsung’s documented SmartThings update guidance.
What to note
A control-software issue is distinguished from a persistent voltage warning.

THE DETAILS MATTER

Scope & troubleshooting notes

How to interpret this result

The code can have a special software-related context with a MultiControl kit. That does not make every 9C1 harmless; a persistent warning on the dryer itself still needs service.

YOUR NEXT DECISION

When to stop and get help

Arrange Samsung service if the condition remains after the listed owner checks, or if damage prevents completing them safely.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Samsung support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

Samsung dryer error codes
Samsung US · Manufacturer support · Checked Oct 28, 2026
Heating errors; temperature errors; voltage errors — Samsung US dryers; codes vary by model
Clothes are not dry after a Samsung dryer
Samsung US · Manufacturer support · Checked Oct 28, 2026
Vent test results; HC; 9C1 — Samsung vented dryers with the relevant test
Samsung Dryer Information Codes
Samsung · Manufacturer support · Checked Oct 28, 2026
Other information codes — Samsung Australia corroboration of shared diagnostics; no foreign electrical values or internal repair instructions transferred.

ErrHive is an independent information resource, not an authorized representative of Samsung. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.