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Malfunction by other devices

Air conditioner malfunction — Caused by other electrical devices

Fujitsu · Air Conditioners

What does Malfunction by other devices mean?

The air conditioner may malfunction due to electrical interference from other appliances like electric shavers or nearby wireless radio transmitters.

Common Causes

  • Interference from other electrical appliances (e.g., electric shaver, wireless radio transmitter) used nearby.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the circuit breaker for the air conditioner once.

  2. 2

    Turn the circuit breaker back on.

  3. 3

    Resume operation using the remote controller.

Browse all codes in this manual (118)
Verified technical data. Last updated: April 2026

Related Faults

11Error 11 — Serial communication error (Indoor unit not sending signal)12Error 12 — Wired Remote Controller Communication Error18Error 18 — External communication error
Source: Fujitsu Air Conditioners
Open Manual (Page 11)Search more codes in this manual