5 Signs Your Furnace Needs Professional Attention
1. Yellow or Flickering Pilot Light
A healthy pilot light burns blue. If yours is yellow or flickering, it could indicate:
- Improper combustion
- Carbon monoxide production
- Ventilation issues
2. Strange Noises
Some sounds to watch for:
- Banging: Could be delayed ignition or ductwork issues
- Squealing: Belt or bearing problems
- Rumbling: Burner issues
- Clicking: Ignition problems
3. Uneven Heating
If some rooms are warm while others are cold:
- Check that vents are open
- Replace your air filter
- If problem persists, call for inspection
4. Increased Energy Bills
A sudden spike in heating costs often means:
- Your furnace is working harder than it should
- Components are wearing out
- Ductwork may be leaking
5. Frequent Cycling
If your furnace turns on and off constantly:
- Thermostat may be malfunctioning
- Airflow could be restricted
- Heat exchanger might be overheating
Peninsula Winter Prep
Our winters are mild but still require attention. Get your furnace checked before the cold nights arrive - typically by October or November.
Peninsula Homeowner Takeaway
The most useful next step is to connect the advice to the exact symptom in your home: when it happens, which rooms are affected, and whether the equipment starts normally.
Photos of the thermostat, filter, outdoor unit, furnace or air handler, and model plate can make a service call more efficient.
Use the article as a starting point, not a final diagnosis. HVAC symptoms can come from controls, airflow, electrical parts, ducts, refrigerant behavior, or equipment age.
If a simple filter, thermostat, or airflow check does not change the symptom, document what the system does before calling for service.
Best next diagnostic route
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