What It Means
- Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
Lennox Ducted Heating
Lennox Error Code E274
Ducted Heating: Gas furnace (indoor)
Causes & actions from Lennox
How it shows
- Integrated control 7-segment display: E274
Shut down system. 1-hour soft lockout. Check firing rate and air flow. Check for blockage. Clears when heat call finishes successfully.
Other manual wording
SLP98UHV, SLP99UHV
See E 250.
Applicable models & manual sources
- EL180UHNE(K)
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- EL195UHNEK
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02
- EL196UHEK
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- EL280UHE(X)
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- EL280UHEK
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
EL280UHEK, EL280UHEK(X)
- EL296UHE
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- EL297UHEK
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
- ML180UHVK
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- ML193DFEK
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- ML196UHEK
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- ML196UHEK
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- ML296UHVK
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
- ML297UH045XV36BK
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK
- SL280DFNV
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
- SL280UHV
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
- SL297UHNV
Soft lockout - Exceeded maximum number of re- cycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 min- utes
- SLP98UHV
Soft lockout − Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
- SLP99UHV
Soft lockout - Exceeded maximum number of recycles. Last recycle failed due to the limit circuit opening or limit remained open longer than 3 minutes.
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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