What It Means
- GF Check Gas Valve
Lennox Equipment not specified
Lennox Equipment not specified Error Code 204
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 204
Priority condition: Service Urgent There is an issue with the furnace gas valve. • Check gas valve operation and wiring. • Check for voltage to the gas valve.
Applicable models & manual sources
- iComfort S30
GF Check Gas Valve
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.
