What It Means
- Flame sensed out of sequence -- flame still present.
Lennox Ducted Heating
Lennox Error Code 1 + 3
Ducted Heating:
Causes & actions from Lennox
How it shows
- ignition control red led: 1 + 3
This manual entry does not list further causes or actions.
Applicable models & manual sources
- G60UHV(X)
Flame sensed out of sequence −− flame still present.
- G61MPV
Flame sensed out of sequence −− flame still present.
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.
