What It Means
- ML196UHE: Board Fault Detected
- ML180UHV: Board fault detected,
- O23-5, OF23-5, OHR23-5: Flame sensed
Lennox Ducted Heating
Lennox Ducted Heating Error Code On
Ducted Heating
On means different things on different Ducted Heating models. Enter your model number to see only your reading, or find your model below.
Causes & actions from Lennox
Board Fault Detected
Models: ML196UHE
How it shows
- Integrated control red LED: On
This manual entry does not list further causes or actions.
Applicable models & manual sources
- ML196UHE
Board Fault Detected
Board fault detected,
Models: ML180UHV
How it shows
- Integrated control red LED: On
This manual entry does not list further causes or actions.
Applicable models & manual sources
- ML180UHV
Board fault detected,
Flame sensed
Models: O23-5, OF23-5, OHR23-5
Oil furnace (indoor)
How it shows
- oil r7184b status led: On
This manual entry does not list further causes or actions.
Applicable models & manual sources
- O23-5
Flame sensed
O23-5, OHR23-5, OF23-5
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.
