For the Samsung Washer families covered by the source set, **9H1** means **power / voltage error**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **9H1**. Search normalization stores it as **9H1** while preserving the characters a homeowner actually sees.
Reviewed by Ethan Mercer · Last reviewed August 17, 2026
Written by
Ethan Mercer Appliance Repair Content SpecialistPublished August 17, 2026Updated August 22, 2026Technically reviewed August 17, 2026
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Error code9H1
ApplianceWasher
Quick answer
Power / voltage error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so 9H1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
For the Samsung Washer families covered by the source set, **9H1** means **power / voltage error**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **9H1**. Search normalization stores it as **9H1** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
While 9H1 is active, the appliance can stop, restart, or refuse a high-load function.
While 9H1 is active, the code can appear after a surge, brownout, outage, incorrect supply, or frequency problem.
One clue that supports the 9H1 diagnosis is that some models preserve the display even when one required power leg or voltage range is abnormal.
The 9H1 display becomes more meaningful if 9H1 appears during the washer stage associated with power / voltage error.
Depending on the exact model, the cycle may pause, stop, retry, drain, or refuse to advance until the condition is cleared.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Power / voltage error
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
As an external check for 9H1, confirm the breaker has not tripped and the appliance is connected as specified by Samsung.
As an external check for 9H1, if the event followed an outage or surge, perform only the documented one-time power reset.
To rule out an accessible cause, do not perform live mains-voltage measurements unless qualified.
The next non-invasive check is to stop if breakers trip repeatedly, plugs/outlets overheat, or there is arcing.
Before opening any service area, record the code and the cycle stage where it appears.
For 9H1, start by doing this: check owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
Important safety warning. Disconnect power and stop use for active leakage near electrical parts, smoke, burning smell, or repeated breaker trips. For 9H1, stop troubleshooting immediately if the symptom crosses into a safety hazard rather than a normal diagnostic condition.
Get help
When to request repair service
Persistent power/voltage codes need the household supply and appliance power/control circuits checked safely before parts are replaced. A repeatable 9H1 event is more useful diagnostically than repeated resets, because it shows when the power / voltage error check is failing.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
A single documented power reset can help after an external condition or power event is corrected. If **9H1** returns at the same stage, repeated resets only erase useful evidence and do not repair the cause.
That depends on the accompanying symptom. A code with no safety hazard may allow a short diagnostic check, but **9H1** should not be ignored if performance is deteriorating or the display keeps returning.
Treat **9H1** as a starting point, not a replacement instruction. Wiring, feedback signals, operating conditions, and electronic controls can mimic a failed component.
The same-looking code can be reused on another Samsung appliance family or reformatted by region/model year. Match the appliance type and exact model before applying a meaning. This page therefore keeps **Washer 9H1** separate from same-looking codes used by other Samsung appliance families.