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T155

T155 — Serial EEPROM Storage Failure Error

Carrier · Energy Recovery Ventilators

What does T155 mean?

This error indicates a failure in the serial EEPROM's storage function, leading to unit operation errors.

Common Causes

  • Software failure

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Restart the unit to see if the error clears.

  2. 2

    Check for any available software updates.

  3. 3

    If the error persists, contact customer support for further assistance.

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