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A200

A200 — Linkage Timeout Error — Comm Failure

Carrier · Energy Recovery Ventilators

What does A200 mean?

A communication failure has occurred, indicated by a linkage timeout error. The system will fall back to local SPT operation.

Common Causes

  • Linkage commands are not being received

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the communication pathway for the linkage system.

  2. 2

    Ensure commands are being sent correctly.

  3. 3

    Restart the linkage system components.

  4. 4

    Verify the SPT settings are operational.

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

Related Faults

1 Fault CodeFault Code 1 — OVERCURRENT10 Fault CodeFault Code 10 — PANEL LOSS11 Fault Code11 Fault Code — ID RUN FAIL
Source: Carrier Energy Recovery Ventilators
Open Manual (Page 47)Search more codes in this manual