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14

Inverter Flash Code 14 (Red 1 flash, Green 4 flashes) — OD Inverter Compressor Slowdown

Lennox · Communicating Systems

What does 14 mean?

This is a minor alert indicating the compressor is slowing down due to high current or approaching temperature limits. It's often informational and occurs during startup. The system automatically adjusts compressor speed and ramp-up speed.

Common Causes

  • Compressor current approaching limit
  • Inverter reaching heat sink temperature limit
  • System running at high pressures
  • Rapid current increase during compressor startup

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the thermostat and outdoor control for other alert codes or high-pressure trips.

  2. 2

    This code often clears automatically when the condition no longer exists.

  3. 3

    If issues persist, refer to unit service documentation for detailed troubleshooting.

Browse all codes in this manual (41)
Verified technical data. Last updated: April 2026

Related Faults

21Inverter Flash Code 21 (Red 2 flashes, Green 1 flash) — OD Inverter DC Peak Fault262 red flashes, 6 green flashes — Compressor startup fail292 red flashes, 9 green flashes — Compressor over-current
Source: Lennox Communicating Systems
Open Manual (Page 67)Search more codes in this manual