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25-22

Code 25-22 Model Plug Missing — Model plug not currently installed but stored in memory

Carrier · Air Conditioners & Heat Pumps

What does 25-22 mean?

A valid model plug value is stored in the PCM's memory, but the physical model plug is not currently installed. The equipment will operate properly if the stored model plug value corresponds to the equipment model.

Common Causes

  • Missing model plug.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Remove power from the equipment.

  2. 2

    Install the correct model plug corresponding to the equipment model.

  3. 3

    Reapply power to the equipment.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

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Source: Carrier Air Conditioners & Heat Pumps
Open Manual (Page 15)Search more codes in this manual