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72

Suction Over Temp Event 72

Carrier · Heat Pumps

What does 72 mean?

The system has detected a high suction gas temperature. It will attempt to recover from current spikes and self-correct. Persistent over current trips will eventually lead to Error 82 'Suction Over Temp Lockout'. The system will reset after 15 minutes.

Common Causes

  • High Suction Gas Temperature

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    The system will attempt to self-recover from temporary current spikes.

  2. 2

    If this event occurs frequently, ensure the system's air filters are clean.

  3. 3

    If the condition becomes persistent and leads to Error 82, refer to the troubleshooting steps for 'Suction Over Temp Lockout'.

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 16)Search more codes in this manual