What It Means
- GF Ignition Circuit Fault
Lennox Equipment not specified
Lennox Error Code 290
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 290
Priority condition: Service Urgent There is a problem with the furnace ignition circuit. The system will go into Watchguard mode. Measure resistance of hot surface igniter. Replace the hot surface igniter if it is not within specifications.
Applicable models & manual sources
- iComfort S30
GF Ignition Circuit Fault
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.
