What It Means
- Safety thermostat tripped due to over temperature (probable blocked pump or air in heating circuit).
Lennox Hydronic Heating
Lennox Hydronic Heating Error Code 110
Hydronic Heating:
Causes & actions from Lennox
How it shows
- boiler control fault display: 110
Press RESET (R) button for at least 2 seconds If this fault persists, call authorized SERVICE technician
Applicable models & manual sources
- GCWB95W-150
Safety thermostat tripped due to over temperature (probable blocked pump or air in heating circuit).
GCWB95W-150, GCWB95W-205, GCWB95F-150
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.
