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71

Compressor Motor Temp Out of Range Event 71

Carrier · Heat Pumps

What does 71 mean?

The compressor motor temperature is outside its normal operating range. This is most likely due to a shorted sensor circuit. The system will reset after 5 minutes.

Common Causes

  • Shorted sensor circuit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Troubleshoot the compressor motor thermistor.

  2. 2

    The compressor sensor fuse should measure 5 kohm between motor and common terminals.

  3. 3

    If the sensor is faulty or out of range, it may need to be replaced.

  4. 4

    After checking, allow 5 minutes for the system to attempt a reset and resume operation.

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