What It Means
- Fault / Service
Lennox Packaged Unit
Lennox Error Code Solid blue, interrupted by red flash code
Packaged Unit: Packaged HVAC (outdoor)
Causes & actions from Lennox
How it shows
- rds multicolor operating led: Solid blue, interrupted by red flash code
Refer to table for troubleshooting guidance.
Applicable models & manual sources
- ZCD036
Fault / Service
ZCD036, ZCD048, ZCD060, ZCD074, ZGD036, ZGD048, ZGD060, ZGD074
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.
