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15030

15030 — Free cooling liquid thermistor fault, circuit A

Carrier · 30XA/XAS/XB/XBP/XW Chillers

What does 15030 mean?

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

Common Causes

  • Defective free cooling liquid thermistor
  • Wiring issue on circuit A

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the wiring to the free cooling liquid thermistor for circuit A.

  2. 2

    Inspect the thermistor for any damage.

  3. 3

    Contact Carrier Service if free cooling is not re-enabled.

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
Open Manual (Page 37)Search more codes in this manual