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Thermostat set too low (cooling).

Compressor Operates Continuously - Thermostat set too low (for cooling).

Bryant · Comfort Alert Diagnostic Module

What does Thermostat set too low (cooling). mean?

The thermostat's cooling setpoint is set very low, creating a high demand that requires the unit to run continuously to try and achieve it.

Common Causes

  • Thermostat setpoint adjusted too low.
  • Thermostat malfunctioning and indicating a lower temperature than actual.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the thermostat display and setpoint.

  2. 2

    Adjust the thermostat setpoint to a reasonable and comfortable temperature (e.g., 72-75°F / 22-24°C).

  3. 3

    Observe if the unit cycles off after a period.

Browse all codes in this manual (55)
Verified technical data. Last updated: April 2026

Related Faults

ALERT LED * flashes Yellow (misreported)Yellow ALERT LED * flashes (misreported) — Welded Contactor checkALERT LED 2 flashes YellowYellow ALERT LED 2 flashes — System pressure trip or compressor overloadALERT LED 3 flashes YellowYellow ALERT LED 3 flashes — Compressor short cycling
Source: Bryant Comfort Alert Diagnostic Module
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