When to call
Signs you may need furnace replacement
A single symptom does not always identify a failed part. These common warning signs are a good reason to have the equipment checked:
- The furnace requires a major repair
- The heat exchanger or venting raises a safety concern
- Comfort and energy performance have declined
- The equipment is aging and unreliable
Turn equipment off and seek prompt help if you smell gas, see smoke or sparking, find significant leaking near electrical parts, or suspect unsafe combustion. For a gas odor or immediate danger, leave the area and contact the gas utility or emergency services first.

