Lennox Ducted Heating

Lennox Error Code E111

Ducted Heating

E111 means different things on different Ducted Heating models. Enter your model number to see only your reading, or find your model below.

What It Means

  • Line voltage polarity reversed.
  • Low line voltage.

Causes & actions from Lennox

Line voltage polarity reversed.

9 models

EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02, EL196UHEK, EL280UHE(X), EL296UHE, ML180UHVK, ML193DFEK, ML196UHEK

Gas furnace (indoor)

How it shows
  • Integrated control 7-segment display: E111

Reverse line power voltage wiring. System resumes normal operation 5 seconds after fault recovered.

Applicable models & manual sources

Low line voltage.

14 models

EL280UHEK, EL280UHEK(X), EL297UHEK, ML296UHVK, ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK, SL280DFNV, SL280UHV, SL297UHNV

Gas furnace (indoor)

How it shows
  • Integrated control 7-segment display: E111

Reverse line power voltage wiring. System resumes normal operation 5 seconds after fault recovered.

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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