Lennox Split & Multi-Split

Lennox Split & Multi-Split Error Code d

Split & Multi-Split

d means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.

What It Means

  • CBK48MVT: Dehumidification mode (1 second ON) / 1 second OFF) / cfm setting displayed / Pause / Repeat Codes)
  • CBX40UHV: Dehumidification mode (unit in dehumidification mode only)

Causes & actions from Lennox

Dehumidification mode (1 second ON) / 1 second OFF) / cfm setting displayed / Pause / Repeat Codes)

Models: CBK48MVT

How it shows
  • Single-character display: d

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • CBK48MVT

    Dehumidification mode (1 second ON) / 1 second OFF) / cfm setting displayed / Pause / Repeat Codes)

    CBK48MVT manual, page 49

Dehumidification mode (unit in dehumidification mode only)

Models: CBX40UHV

Air handler (indoor)

How it shows
  • Single-character display: d

This manual entry does not list further causes or actions.

Applicable models & manual sources
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.

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