What It Means
- Fault/Service
Lennox Split & Multi-Split
Lennox Error Code Solid blue, interrupted by issue diagnostic code
Split & Multi-Split: Air handler (indoor)
Causes & actions from Lennox
How it shows
- rds noncomm operating led: Solid blue, interrupted by issue diagnostic code
Refer to Table 17 for troubleshooting steps.
Other manual wording
CBK45UHPT
Refer to TABLE 8 for troubleshooting steps.
Applicable models & manual sources
- CBK45UHVT
Fault/Service
- CBK45UHVT
Fault/Service
- CBK45UHPT
Fault/Service
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?
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