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START UP

Display Message - START UP

Lennox · PRODIGY 2.0 Unit Controller

What does START UP mean?

The system is in a default start-up delay phase before servicing demands. Access the setup menu for installation.

Common Causes

  • System is undergoing initial start-up
  • Waiting for installation completion

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Go to the M3 user interface.

  2. 2

    Navigate to SETUP > INSTALL to complete the required configuration.

Browse all codes in this manual (56)
Verified technical data. Last updated: April 2026

Related Faults

12Alarm 12 - High Pressure Switch S414Alarm 14 - High Pressure Switch S716Alarm 16 - High Pressure Switch S28
Source: Lennox PRODIGY 2.0 Unit Controller
Open Manual (Page 97)Search more codes in this manual