Furnace Repair and Maintenance: Expert Advice from an HVAC Technician

As an HVAC technician, I often repair furnaces that need maintenance. A properly functioning furnace not only ensures efficient heating but also lasts longer. In this article, I’ll share common furnace problems, routine maintenance tasks, and signs you need expert help.

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Common Furnace Problems

Heating units often experience various issues over extended use. Here are some of the usual malfunctions I see in my work:

  • Heating System Won’t Start – This might happen due to a worn-out thermostat, damaged circuit breaker, or sensor failure.
  • Limited Warm Air Output – Clogged vents can reduce efficiency.
  • Unusual Sounds – Clanking or rattling noises could mean a loose component.
  • Frequent Cycling – This may be caused by a dirty filter.
  • Intermittent Ignition Failures – A faulty thermocouple may stop the furnace from staying on.

Routine Furnace Upkeep

Regular maintenance is important to keep your furnace running. Here are the best maintenance practices:

  1. Keep Air Filters Clean
  2. A blocked air filter restricts airflow, causing inefficiencies. Change the filter every 1-3 months.
  3. Keep the Blower Fan in Good Condition
  4. The circulation system pushes warm air via the ductwork. Dust buildup can cause wear and tear.
  5. Ensure Accurate Readings
  6. A miscalibrated thermostat might result in heating inefficiencies. Monitor the connectivity to verify the system is functioning properly.
  7. Inspect the Heat Exchanger
  8. A damaged heat exchanger poses a risk of carbon monoxide—a serious hazard. Should you detect soot buildup, call a professional immediately.
  9. Keep Vents Clear
  10. Blocked vents or flue pipes can cause poor heating performance. Inspect airflow pathways to ensure proper operation.
  11. Schedule Annual Professional Maintenance
  12. A yearly tune-up by a licensed HVAC technician helps prevent potential failures. This involves checking electrical components.

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When to Call a Professional

While basic maintenance tasks are doable by homeowners, serious furnace failures require professional expertise. Here’s when:

  • There’s No Heat – If checking basic settings doesn’t fix the problem, it’s time for a professional repair.
  • There’s a Strong Unusual Smell – Evacuate and call for service as soon as possible.
  • Strange Noises Are Getting Worse – Squealing sounds could mean loose components.
  • There’s a Sudden Increase in Energy Costs – Higher costs may indicate inefficiencies.

Summary

Proper furnace maintenance guarantees consistent heating and extends the system’s lifespan. Keeping up with routine checkups can prevent costly repairs. Still, for major issues, get expert assistance. A experienced HVAC specialist can diagnose serious failures and help your system run smoothly all season long.

Need 24HR Furnace Repair Contractor in Laurys Station 18059? Trust Lehigh Valley HVAC Pros! For 24/7 Emergency Service Call 484-212-5588

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