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Samsung Microwave Oven

Samsung Microwave E-81 error

Communication error (between control boards)

Needs a technicianFrom brand’s official support

Try a reset once. If it comes back, a trained technician should repair it.

Also shown as: E-82 E-83

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 E-81 mean on a Samsung Microwave Oven?

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 Microwave Oven error E-81 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 Microwave Oven with E-81?

Avoid repeated restarts; running with this fault can cause more damage.

Other Samsung Microwave codes

E-11 Auto-cook (gas/weight) sensor fault E-21 Oven temperature sensor fault E-24 Overheating protection E-52 Memory (EEPROM) error — control board E-61 Humidity sensor fault E-71 Steam sensor fault C-10 Auto-cook (gas/weight) sensor fault C-20 Oven temperature sensor fault C-70 Steam sensor fault C-d0 Door switch / door sensing fault C-F0 Communication error (between control boards)

All Samsung Microwave Oven error codes

Sources

We write every explanation in our own words from these references.

Last checked: 2026-10-20