Lennox Ducted Heating

Lennox Error Code E275

Ducted Heating

E275 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

  • Soft lockout - Flame sensed out of sequence. Flame signal is gone.
  • SLP98UHV, SLP99UHV: Soft lockout - Flame sensed out of sequence from code 241 fault. Flame signal is gone.

Causes & actions from Lennox

Soft lockout - Flame sensed out of sequence. Flame signal is gone.

24 models

EL180UHNE(K), EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02, EL196UHEK, EL280UHE(X), EL280UHEK, EL280UHEK(X), EL296UHE, EL297UHEK, ML180UHVK, ML193DFEK, ML196UHEK, ML296UHVK, ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK, SL280DFNV, SL280UHV, SL297UHNV

Gas furnace (indoor)

How it shows
  • Integrated control 7-segment display: E275

Shut off gas. Check for gas valve leak. 1-hour soft lockout. Clears when flame has been proven stable.

Applicable models & manual sources

Soft lockout - Flame sensed out of sequence from code 241 fault. Flame signal is gone.

Models: SLP98UHV, SLP99UHV

How it shows
  • Integrated control 7-segment display: E275

See E 241.

Applicable models & manual sources
  • SLP98UHV

    Soft lockout − Flame sensed out of sequence from code 241 fault. Flame signal is gone.

    SLP98UHV manual, page 63

  • SLP99UHV

    Soft lockout - Flame sensed out of sequence from code 241 fault. Flame signal is gone.

    SLP99UHV manual, page 32

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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