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Circuit B, Compressor 3 Failure

Circuit B, Compressor 3 Failure Alert

Carrier · 38AP Air Handler

What does Circuit B, Compressor 3 Failure mean?

This alert indicates a general failure of Compressor 3 on Circuit B. The affected compressor has been shut down. A manual reset is required.

Common Causes

  • General failure of Compressor 3
  • Internal compressor problem
  • Issue within Circuit B

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Manually reset the alert.

  2. 2

    Perform diagnostics on Compressor 3.

  3. 3

    Check related components within Circuit B.

  4. 4

    Professional service may be required.

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

Related Faults

A051A051 — Circuit A, Compressor 1 Stuck On Failure AlarmA052A052 — Circuit A, Compressor 2 Stuck On Failure AlarmA053A053 — Circuit A, Compressor 3 Stuck On Failure Alarm
Source: Carrier 38AP Air Handler
Open Manual (Page 163)Search more codes in this manual