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LC

LC — Fault Lockout: Manual Reset Required

Carrier · 38AP Air Handler

What does LC mean?

The drive has failed three start attempts and requires a manual reset to clear the fault lockout.

Common Causes

  • Multiple failed start attempts
  • Persistent fault condition

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Correct the underlying fault condition that caused the failed start attempts.

  2. 2

    Cycle power to the unit to perform a manual reset.

  3. 3

    If the fault condition cannot be identified or corrected, consult support.

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 154)Search more codes in this manual