What It Means
- Obstruction in flue pipe.
Lennox Hydronic Heating
Lennox Hydronic Heating Error Code 53
Hydronic Heating:
Causes & actions from Lennox
How it shows
- boiler control fault display: 53
Turn boiler off for a few seconds If this fault persists, call authorized SERVICE technician
Applicable models & manual sources
- GCWB95W-150
Obstruction in flue pipe.
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.
