Lennox Split & Multi-Split

Lennox Split & Multi-Split Error Code E6

Split & Multi-Split

E6 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

  • MLA, MPA, MPB: PFC module protection
  • MLA, MPA, MPB: When PFC module protection occurs three times within 15 minutes, the LED displays “E6” or alternative displays between running frequency and “E6”(each displays 0.5s)

Causes & actions from Lennox

PFC module protection

Models: MLA, MPA, MPB

Mini-split unit (outdoor)

How it shows
  • corp1816 multizone outdoor display: E6

This manual entry does not list further causes or actions.

Applicable models & manual sources

When PFC module protection occurs three times within 15 minutes, the LED displays “E6” or alternative displays between running frequency and “E6”(each displays 0.5s)

Models: MLA, MPA, MPB

Mini-split unit (outdoor)

How it shows
  • corp1816 multizone outdoor display: E6

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • MPA

    When PFC module protection occurs three times within 15 minutes, the LED displays “E6” or alternative displays between running frequency and “E6”(each displays 0.5s)

    MPA, MPB, MLA

    MPA manual, page 5

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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