What It Means
- GF No Ground Connection
Lennox Equipment not specified
Lennox Error Code 112
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 112
Priority condition: Service Urgent The reporting component cannot find earth ground. The thermostat will shut down the system. • Provide proper earth ground to the equipment. • System resumes normal operation five seconds after critical condition is recovered.
Applicable models & manual sources
- iComfort S30
GF No Ground Connection
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.
