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P-95

P-95 — Operating fault in free cooling, circuit B

Carrier · Pro-Dialog Control

What does P-95 mean?

There is an operating fault in the free cooling mode for circuit B. The refrigerant pump may not have started correctly or has cavitated. Free cooling mode for this circuit will stop.

Common Causes

  • Refrigerant pump did not start correctly.
  • Refrigerant pump has cavitated.
  • Low refrigerant level.
  • Blocked pump.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check for any obstructions in the refrigerant pump.

  2. 2

    Ensure the refrigerant level is adequate.

  3. 3

    Reset the alarm and switch back to normal cooling mode.

  4. 4

    If the fault recurs, consult a service technician.

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

Related Faults

A1-01A1-01 — Maintenance alert: service number nnCT-01CT-01 — Contactor stuck, circuit ACT-02CT-02 — Contactor stuck, circuit B
Source: Carrier Pro-Dialog Control
Open Manual (Page 36)Search more codes in this manual