CodeRegistry
Brands
  1. Home
  2. Carrier
  3. 38AP Air Handler
  4. T052
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

T052

T052 — Circuit A, Compressor 2 Chattering Failure Alert

Carrier · 38AP Air Handler

What does T052 mean?

This alert indicates Compressor 2 on Circuit A is rapidly cycling on and off (chattering). The compressor has been shut down to prevent damage. Requires a manual reset.

Common Causes

  • Compressor 2 is chattering
  • System operating conditions causing rapid cycling
  • Control system fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Manually reset the alert.

  2. 2

    Investigate the cause of Compressor 2 chattering.

  3. 3

    Check system pressures and refrigerant levels.

  4. 4

    Consult a qualified HVAC technician.

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