Lennox Split & Multi-Split

Lennox Error Code Red ON, Green OFF

Split & Multi-Split: Air conditioner (outdoor), Heat pump (outdoor)

What It Means

  • Indicates inverter is operating normally.

Causes & actions from Lennox

How it shows
  • Inverter LED flash code: Red ON, Green OFF (green: off, red: on)

Indicates inverter is operating normally (EL21KLV-024, -036, -048, -060).

Other manual wording

EL18XCV, EL18XCV-024, EL18XCV-036, EL18XPV, EL18XPV-024, EL18XPV-036, EL19KPV, EL19KPV-024, EL19KPV-036, EL21KLV, EL21KLV-024, EL21KLV-036,…

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • EL21KLV-024

    Inverter operating normally, red ON and green OFF; original separate rows cover EL21KLV-024/-036 and -048/-060.

    EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060

    EL21KLV-024 manual, page 45

  • EL18XCV

    EL18XCVS024, 036, EL18XCV-024, -036 only: Indicates inverter is operating normally.

    EL18XCV, EL18XCV-024, EL18XCV-036

    EL18XCV manual, page 36

  • EL18XCV

    EL18XCVS024, 036, EL18XCV-024, -036 only: Indicates inverter is operating normally.

    EL18XCV, EL18XCV-024, EL18XCV-036

    EL18XCV manual, page 75

  • EL18XPV

    EL18XPV-024, -036 only: Indicates inverter is operating normally.

    EL18XPV, EL18XPV-024, EL18XPV-036

    EL18XPV manual, page 78

  • EL18XPV

    EL18XPV-024, -036 only: Indicates inverter is operating normally.

    EL18XPV, EL18XPV-024, EL18XPV-036

    EL18XPV manual, page 36

  • EL19KPV

    EL19KPV-024, -036 only: Indicates inverter is operating normally.

    EL19KPV, EL19KPV-024, EL19KPV-036

    EL19KPV manual, page 80

  • EL19KPV

    EL19KPV-024, -036 only: Indicates inverter is operating normally.

    EL19KPV, EL19KPV-024, EL19KPV-036

    EL19KPV manual, page 42

  • EL21KLV

    EL21KLV-024, -036 only: Indicates inverter is operating normally.

    EL21KLV, EL21KLV-024, EL21KLV-036

    EL21KLV manual, page 92

  • EL22KCV

    EL22KCV-024, -036 only: Indicates inverter is operating normally.

    EL22KCV, EL22KCV-024, EL22KCV-036

    EL22KCV manual, page 75

  • EL22KCV

    EL22KCV-024, -036 only: Indicates inverter is operating normally.

    EL22KCV, EL22KCV-024, EL22KCV-036

    EL22KCV manual, page 39

  • SL22KLV

    SL22KLV-024 only: Indicates inverter is operating normally.

    SL22KLV, SL22KLV-024

    SL22KLV manual, page 42

  • SL22KLV

    SL22KLV-024 only: Indicates inverter is operating normally.

    SL22KLV, SL22KLV-024

    SL22KLV manual, page 86

  • SL25KCV

    SL25KCV-024, -036 only: Indicates inverter is operating normally.

    SL25KCV, SL25KCV-024, SL25KCV-036

    SL25KCV manual, page 36

  • SL25KCV

    SL25KCV-024 only: Indicates inverter is operating normally.

    SL25KCV, SL25KCV-024

    SL25KCV manual, page 70

  • SL28XCV

    SL28XCV-024 only: Indicates inverter is operating normally.

    SL28XCV, SL28XCV-024

    SL28XCV manual, page 64

  • SL28XCV

    SL28XCV-024, -036 only: Indicates inverter is operating normally.

    SL28XCV, SL28XCV-024, SL28XCV-036

    SL28XCV manual, page 30

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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