What It Means
- Unit type or capacity not determined, or unit not programmed; read the current power-up display position.
Lennox Split & Multi-Split
Lennox Error Code three bars
Split & Multi-Split: Heat pump (outdoor)
Causes & actions from Lennox
How it shows
- Outdoor control 7-segment display: three bars
This manual entry does not list further causes or actions.
Applicable models & manual sources
- SL22KLV
Unit type or capacity not determined, or unit not programmed; read the current power-up display position.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
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.
