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IN_SERVICE_MODE

IN SERVICE MODE — System controlled by service tool

Bryant · Air Conditioning

What does IN_SERVICE_MODE mean?

The user interface is currently displaying 'IN SERVICE MODE'. This means a service tool is controlling the system, and the regular user interface is temporarily inactive.

Common Causes

  • Service technician actively using a service tool
  • Accidental entry into service mode
  • Improper removal of a service tool

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Wait for the service technician to complete their work and exit service mode.

  2. 2

    If no technician is present, try restarting the system.

  3. 3

    If the display persists, contact your HVAC service provider.

Browse all codes in this manual (47)
Verified technical data. Last updated: April 2026

Related Faults

13Code 13 — Limit Circuit Lockout14Code 14 — Ignition Lockout15Code 15 — Blower Motor Lockout
Source: Bryant Air Conditioning
Open Manual (Page 17)Search more codes in this manual