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15001

15001 — Evaporator entering water thermistor fault

Carrier · 30XA/XAS/XB/XBP/XW Chillers

What does 15001 mean?

The sensor measuring the evaporator's incoming water temperature has detected an issue. This can cause the unit to shut down.

Common Causes

  • Defective thermistor
  • Faulty wiring to the thermistor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check wiring connections to the evaporator thermistor.

  2. 2

    Inspect the thermistor for any visible damage.

  3. 3

    Contact Carrier Service for further diagnosis if the issue persists.

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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