What It Means
- Rollout Switch open
Lennox Packaged Unit
Lennox Packaged Unit Error Code 1 Flash
Packaged Unit: Packaged HVAC (outdoor)
Causes & actions from Lennox
How it shows
- dsi ignition heartbeat led: 1 Flash
This manual entry does not list further causes or actions.
Applicable models & manual sources
- LDT078
Rollout Switch open
LDT078, LDT092, LDT102, LDT120, LDT152
- LGM156U
Rollout Switch open
LGM156U, LGM180U, LGM210U, LGM240U, LGM300U
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.
