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Error Code

Samsung Dryer Error Code AC: Meaning, Checks & Repair

Samsung Dryer code **AC** is associated with **communication error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The recorded display form is **AC**. Search normalization stores it as **AC** while preserving the characters a homeowner actually sees.

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Reviewed by Ethan Mercer · Last reviewed August 17, 2026

Ethan Mercer Written by Ethan Mercer Appliance Repair Content Specialist Published August 17, 2026 Updated August 22, 2026 Technically reviewed August 17, 2026

Content status: Verified

Error code AC
Appliance Dryer
Quick answer

Communication error.

Model compatibility: Samsung can reuse or reformat codes across series and model years, so AC 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

Samsung Dryer code **AC** is associated with **communication error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The recorded display form is **AC**. Search normalization stores it as **AC** while preserving the characters a homeowner actually sees.

Signs

Symptoms you may notice

  • The AC display becomes more meaningful if the appliance may lose communication between control boards, display, inverter, or other electronic modules.
  • A symptom that fits AC is that controls can become unresponsive, a feature can stop, or the code may appear after power-up.
  • One clue that supports the AC diagnosis is that intermittent operation can occur if a connection or power condition is unstable.
  • One clue that supports the AC diagnosis is that aC appears and drying may pause or performance may change because of communication error.
  • On affected Samsung dryer models, heat, airflow, motor, drainage, door, or sensor behavior may be affected depending on the code family.
Why it happens

Possible causes

  • varies by model/region — cross-region baseline — Communication 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.

  • The next non-invasive check is to power the appliance off once using the documented method, then restore power and see whether the code reappears.
  • Before requesting service for AC, record whether the issue followed an outage, update, move, or service event.
  • To rule out an accessible cause, do not reseat internal live connectors unless qualified to follow the exact service procedure.
  • To rule out an accessible cause, record the code and whether the dryer is vented or heat-pump/ventless.
  • With AC recorded, clean/inspect lint filter, heat exchanger, water tank/drain, and external vent only when relevant.
  • As an external check for AC, stop repeated resets if the code returns; model-specific electrical/refrigeration diagnosis can be required.

Important safety warning. Stop for burning smell, smoke, gas odor, repeated breaker trips, or abnormal overheating. Do not bypass thermal protection. Do not bypass a safety device merely to see whether AC disappears.

Get help

When to request repair service

A returning communication/electronic-control code can require harness, connector, board power-supply, firmware, or module testing. In a service visit for AC, model-specific testing should follow the communication error circuit rather than treating the code as proof of one failed part.

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FAQ

Frequently asked questions

References

Sources & references

  • https://www.samsung.com/us/support/troubleshoot/TSG10001006/

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