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TEST

Display Message - TEST

Lennox · PRODIGY 2.0 Unit Controller

What does TEST mean?

The unit is currently in test mode. This may be for diagnostic purposes or network testing.

Common Causes

  • Unit is intentionally placed in test mode
  • Network testing in progress

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Exit test mode via the control interface when testing is complete.

  2. 2

    Consult the system administrator or service technician if unsure about test mode.

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