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12004

12004 — Suction transducer fault, circuit A

Carrier · 30XA/XAS/XB/XBP/XW Chillers

What does 12004 mean?

The pressure transducer measuring suction gas pressure on circuit A has a fault. Circuit A will shut down.

Common Causes

  • Defective suction transducer
  • Wiring issue on circuit A
  • Installation fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the wiring to the suction transducer on circuit A.

  2. 2

    Check the transducer for any damage.

  3. 3

    Contact Carrier Service if circuit A remains shut down.

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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