CodeRegistry
Brands
  1. Home
  2. Carrier
  3. Heat Pumps
  4. 82
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.

82

Suction Over Temp Lockout 82

Carrier · Heat Pumps

What does 82 mean?

The system is locked out for 4 hours due to persistent high suction gas temperature. Common causes include an overcharge of refrigerant, high load conditions, or an improperly matched system. This is a protective measure.

Common Causes

  • Overcharge
  • Attic run lineset and High Load conditions
  • Outside Normal Operating Range (e.g. improper load calculation, system match issue, outside cooling range etc)

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify refrigerant charge by putting the system into cooling charging mode.

  2. 2

    Ensure the system is operating within its normal design and application guidelines.

  3. 3

    Consult application guidelines for proper load calculation and system matching.

  4. 4

    The lockout will clear automatically after 4 hours once the underlying issue is resolved.

Browse all codes in this manual (40)
Verified technical data. Last updated: April 2026

Related Faults

1 (1 sec ON), longer pause (2 sec OFF)Amber LED flashes 1 time (1 sec ON) then longer pause (2 sec OFF) — Variable Capacity Range Cutback1, pauseAmber LED flashes 1 time then pauses — Variable Capacity Operation16Communication Loss Event 16
Source: Carrier Heat Pumps
Open Manual (Page 17)Search more codes in this manual