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Poor perf - Incorrect temp setting

Poor cooling/heating performance — Incorrect temperature setting

Fujitsu · Air Conditioners

What does Poor perf - Incorrect temp setting mean?

The air conditioner's performance might seem poor if the set temperature on the remote controller is not appropriate for the desired room comfort level.

Common Causes

  • Set temperature is too high for effective cooling or too low for effective heating.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the current temperature setting displayed on your remote controller.

  2. 2

    Adjust the temperature setting to a more suitable level for cooling or heating.

  3. 3

    Refer to page 5 of the manual for instructions on how to change temperature settings.

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