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Prepare Your Furnace for Winter: Early Maintenance and Testing Tips For Your Furnace or Boiler

get your home ready for winter, furnace maintenance.

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As the cold weather approaches, ensuring your furnace is in top condition is crucial for keeping your home warm and comfortable. Testing and maintaining your furnace before winter hits can help you avoid unexpected breakdowns and costly repairs when you need your heating system the most. Here’s how to get your furnace ready and the common parts to keep on hand as backups.


Why Test Your Furnace Early?

Testing your furnace before the cold season arrives has several benefits:

  1. Catch Problems Early: Identifying issues now allows you time to address them without the urgency of freezing temperatures.
  2. Avoid Emergency Repairs: Heating contractors are busier during winter. Early testing means you won’t have to wait for repairs during peak demand.
  3. Improve Efficiency: A well-maintained furnace runs more efficiently, saving you money on energy bills.

Step-by-Step Furnace Testing and Maintenance

  1. Check the Thermostat:

    • Set your thermostat to a higher temperature to kickstart the furnace.
    • Ensure it responds correctly and cycles the furnace on and off properly.
  2. Inspect and Replace the Filter:

    • A clogged filter reduces airflow, making your furnace work harder and less efficiently.
    • Replace the filter every 1-3 months during the heating season.
  3. Test the Igniter and Flame Sensor:

    • The igniter lights the burners, while the flame sensor ensures the burners stay lit.
    • Watch for delayed ignition or repeated cycling, which could indicate these parts need attention.
  4. Check for Unusual Sounds or Smells:

    • Listen for rattling, squealing, or banging noises, which could indicate worn components.
    • Unusual smells during the first cycle may indicate dust burning off but should not persist.
  5. Inspect Vents and Ducts:

    • Ensure all supply and return vents are open and unobstructed.
    • Check for signs of duct leakage or disconnections that can reduce heating efficiency.
  6. Test the Blower Motor:

    • The blower motor circulates warm air through your home.
    • If the airflow feels weak, inspect the motor and belts for wear.
  7. Clean the Furnace Exterior:

    • Dust and debris can accumulate on the furnace. A quick cleaning can help prevent overheating.

Common Furnace Parts to Keep on Hand

Having backup parts ready can save time and hassle if something goes wrong during the heating season. Here are the essentials:

  1. Igniter:

    • The igniter is a critical part for starting the furnace. Keep a spare on hand, as it is a common failure point.
  2. Flame Sensor:

    • A dirty or faulty flame sensor can prevent the furnace from staying lit. Replacement is often necessary.
  3. Air Filter:

    • A fresh air filter ensures proper airflow and helps your furnace run efficiently.
  4. Thermostat Batteries:

    • Dead thermostat batteries can cause your furnace to stop working unexpectedly.
  5. Blower Motor Capacitor:

    • A failing capacitor can prevent the blower motor from starting.
  6. Pressure Switch:

    • The pressure switch ensures the furnace operates safely. Replacing a faulty one is straightforward but essential for safety.

Pro Tip: Schedule a Professional Tune-Up

Even if you’re handy with furnace maintenance, scheduling a professional inspection is a smart move. HVAC technicians can identify potential issues that aren’t visible to the untrained eye, such as heat exchanger cracks or improper gas pressures.


Safety Reminder: Clean Your Vents and Chimney

Blocked or dirty vents and chimneys can restrict airflow and lead to dangerous situations, such as carbon monoxide buildup. Inspect and clean these components annually to ensure safe operation.


Be Ready for the Cold Season

Testing and maintaining your furnace early gives you peace of mind when the cold weather sets in. With regular upkeep and a few spare parts like igniters and flame sensors, you’ll be ready to keep your home warm all winter long.

If you need replacement parts for your furnace, including igniters, flame sensors, or filters, contact Midwest Appliance Parts at 773-278-1300, or visit us at 2023 W Fullerton Ave, Chicago, IL 60647. We’re here to help you find everything you need to keep your heating system running smoothly.

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