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15031

15031 — Free cooling liquid thermistor fault, circuit B

Carrier · 30XA/XAS/XB/XBP/XW Chillers

What does 15031 mean?

The free cooling liquid thermistor for circuit B has a fault. The free cooling function will be disabled.

Common Causes

  • Faulty free cooling liquid thermistor
  • Connection problem on circuit B

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the wiring connections for the circuit B free cooling liquid thermistor.

  2. 2

    Check the thermistor for any physical damage.

  3. 3

    Contact Carrier Service if free cooling remains disabled.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

1007810078 — High discharge gas temperature, circuit A1007910079 — High discharge gas temperature, circuit B1008010080 — High discharge gas temperature, circuit C
Source: Carrier 30XA/XAS/XB/XBP/XW Chillers
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