What It Means
- Poor ground detected (Warning only)
Lennox Ducted Heating
Lennox Error Code E117
Ducted Heating: Gas furnace (indoor)
Causes & actions from Lennox
How it shows
- Integrated control 7-segment display: E117
Provide proper grounding for unit. Check for proper earth ground to the system. Warning only will clear 30 seconds after fault recovered.
Applicable models & manual sources
- EL195UHNEK
Poor ground detected (Warning only).
EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02
- EL196UHEK
Poor ground detected (Warning only).
- EL280UHE(X)
Poor ground detected (Warning only).
- EL280UHEK
Poor ground detected (Warning only)
EL280UHEK, EL280UHEK(X)
- EL296UHE
Poor ground detected (Warning only).
- EL297UHEK
Poor ground detected (Warning only)
- ML180UHVK
Poor ground detected (Warning only).
- ML193DFEK
Poor ground detected (Warning only).
- ML196UHEK
Poor ground detected (Warning only).
- ML196UHEK
Poor ground detected (Warning only).
- ML296UHVK
Poor ground detected (Warning only)
- ML297UH045XV36BK
Poor ground detected (Warning only)
ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK
- SL280DFNV
Poor ground detected (Warning only)
- SL280UHV
Poor ground detected (Warning only)
- SL297UHNV
Poor ground detected (Warning only)
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
