Samsung Washing Machine
Samsung Washing Machine AC error
Communication error (between control boards)
Try a reset once. If it comes back, a trained technician should repair it.
Also shown as: AE AC6 AE6 ACb AEb
What it means
Two parts of the appliance (between control boards) have stopped talking to each other. A loose wire, low voltage or a faulty board can cause this.
Common causes
- Loose or damaged connecting / signal wire
- Low or fluctuating voltage, or a faulty stabilizer
- Water, insects or rust on terminals
- Faulty control board
Try this at home first
Tick each step as you go
When to call a technician
If it comes back, a technician should check the connecting cable and boards. Do not open the outdoor unit yourself — it has high voltage.
Safety first
Always switch off at the wall socket or MCB before touching any part. Do not open the outdoor unit, control boards or gas pipes yourself — they carry high voltage and pressure.
Frequently asked questions
What does AC mean on a Samsung Washing Machine?
Communication error (between control boards). Two parts of the appliance (between control boards) have stopped talking to each other. A loose wire, low voltage or a faulty board can cause this.
Can I fix Samsung Washing Machine error AC myself?
You can try a reset first: Switch off at the MCB for 5–10 minutes, then switch on. If the code returns, call a technician.
Is it safe to keep using the Washing Machine with AC?
Avoid repeated restarts; running with this fault can cause more damage.
Other Samsung Washing Machine codes
Same code on other brands
Sources
We write every explanation in our own words from these references.
Last checked: 2026-10-20