What It Means
- LSOM - Compressor contactor is welded.
Lennox Ducted Heating
Lennox Ducted Heating Error Code E408
Ducted Heating:
Causes & actions from Lennox
How it shows
- Integrated control 7-segment display: E408
Compressor runs continuously. Clears the error after 1 normal compressor run cycle or after power reset.
Other manual wording
SLP98UHV, SLP99UHV
This manual entry does not list further causes or actions.
Applicable models & manual sources
- SL280DFNV
LSOM - Compressor contactor is welded.
- SL297UHNV
LSOM - Compressor contactor is welded.
- SLP98UHV
LSOM − Compressor contactor is welded.
- SLP99UHV
LSOM - Compressor contactor is welded.
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.
