CodeRegistry
Brands
  1. Home
  2. Fujitsu
  3. Air Conditioners
  4. No operation - Breaker off
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

No operation - Breaker off

Unit does not operate — Circuit breaker turned off

Fujitsu · Air Conditioners

What does No operation - Breaker off mean?

The air conditioner will not operate if its dedicated circuit breaker has been manually turned off, or if it was previously tripped and not reset.

Common Causes

  • Circuit breaker for the air conditioner is in the OFF position.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Locate the electrical panel and identify the circuit breaker for the air conditioner.

  2. 2

    Turn the circuit breaker to the ON position.

  3. 3

    Attempt to operate the unit 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 14)Search more codes in this manual