A homeowner called because their furnace kept turning on and off and the house never reached the set temperature. With our wet, cold winters here, a reliable furnace matters,especially when a short cycling unit leaves you shivering between heating cycles.
What the Homeowner Was Experiencing Before the Call
- Furnace would run for just a few minutes then shut off repeatedly
- Home struggled to reach and hold the thermostat set point
- Noticeable temperature swings room to room
- Increased frequency of furnace starts over the course of a few days
Short cycling is more than an annoyance in Snohomish and King County. It makes homes feel colder during our long heating season, puts extra strain on the system, and can lead to more serious problems if left unchecked.
What Our Inspection Revealed
- The furnace was a 14 year old natural gas unit showing advanced age
- We found a cracked heat exchanger during a careful inspection
- Signs of overheating and repeated short cycling were present
- The crack created a potential pathway for combustion gases to enter the air stream
At Altitude Heating and Cooling we treat a cracked heat exchanger as an immediate safety concern. A compromised heat exchanger can allow combustion byproducts into the home and is often the deciding factor between repair and replacement on older gas furnaces. That is why a professional diagnosis matters,you need to know the safety implications and long term outlook for your system.
How We Addressed the Problem and Next Steps
- Performed temporary safety measures to prevent the furnace from operating until it was safe
- Conducted a basic safety check for combustion gas indicators and system stability
- Discussed repair versus replacement options with the homeowner and explained the implications of a cracked heat exchanger on a 14 year old unit
- Scheduled a follow-up appointment for full assessment and to plan the safest long term solution
Professional service in this situation prioritizes safety and clarity. You can expect us to secure the system immediately, explain what we found in plain language, and lay out the practical choices so you can decide with confidence. For older furnaces with heat exchanger damage we help homeowners weigh ongoing risk, remaining useful life, and the best path forward.
Stay Warm with Altitude Heating and Cooling
If your furnace is short cycling or not keeping your home comfortable, call Altitude Heating and Cooling. We serve Marysville and the surrounding Snohomish and King County communities and will make safety our first step. Call (425) 201-1998 or visit altitudeheating.com to schedule an assessment.
