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15018

15018 — Condenser subcooling liquid thermistor fault, circuit A

Carrier · 30XA/XAS/XB/XBP/XW Chillers

What does 15018 mean?

The sensor for condenser subcooling liquid temperature on circuit A has a fault. The unit will return to air-cooled mode.

Common Causes

  • Defective thermistor
  • Wiring fault on circuit A

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the wiring to the condenser subcooling liquid thermistor for circuit A.

  2. 2

    Inspect the thermistor for any damage.

  3. 3

    Contact Carrier Service if the unit does not return to air-cooled mode.

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